About EST Adventure

Our story spans across 25 years of one man’s passion and pursuit to overcome personal challenges and create a place for people to reconnect with nature

EST Adventure is one man’s dream come true. No achievement in life, no peak climbed and no journey to the remotest part of the world can be fully appreciated if there is no friend with you to share the joy. It is for this very reason that EST Adventure was established – to share with you the wide experience gained by a small group of people in expeditions, explorations and adventures over the past fifteen years.

We believe that deep down in every one of us lies a little explorer, who, if given proper support, could climb even the highest peaks of the world. It only takes a little persistence to regain lost confidence and everything is possible. The people who have joined us and achieved their dreams, the dreams they could not even say loudly before are undeniable proof. Under our guidance over 1000 mountaineers have successfully climbed peaks over 5000 m high, 400 successfully climbed peaks over 6000 m high, and over 50 of them have had the opportunity to view the world from summits over 8000 m high. The youngest of them was 18 years of age when he reached the top of Aconcagua (6962 m), while the oldest celebrated his 70th birthday on the same peak.

About our Extreme Summit Team

The team behind your adventure. From professional trekking guides, canyoning experts, kayak or climbing instructors, we all share the same love for nature and desire to show it all to the good people around the world
DRAGAN JACIMOVIC
EST Adventure founder. On May 26, 2000, Dragan became the first man from Serbia to climb the highest peak in the world, Mt. Everest (8848m). During the 1998. post-monsoon season, he climbed Cho-Oyu (8201m), and during the 1999. winter season, he climbed Ama Dablam (6854m). During his long and fruitful career as a top-level guide, he climbed the highest peak in South America, Aconcagua (6962m) - 7 times.

As an expedition leader, he set several records in 100% successful ascents. At the end of July 2004, 34 mountaineers under Dragan's leadership successfully conquered Mt. Elbrus (5642m). After that, in February 2008, he took all 22 expedition members to the peak of Aconcagua (6962m). In his career so far, he has led successful expeditions to Mt. Everest (8848m), Manaslu (8163m), Cho Oyu (8201m), Ama Dablam (6854m), Lobuche East (6119m), Island Peak (6189m), Aconcagua (6962m), Kilimanjaro (5895m), and Elbrus (5642m).

Under his guidance, over 250 mountaineers from the Balkan region climbed the highest peaks around the world. Notable being, the first woman from Serbia, the first mountaineer from Bosnia and Herzegovina, and the first Macedonian who successfully ascended Mt. Everest (8848m). Dragan's greatest quality is the fact that all his expedition members returned home safe and well. He participated in several humanitarian actions to help children without parental care, and he’s especially proud of helping the Sherpa community, by helping renovate the primary school in village of Namche Bazar (Khumbu, Nepal).…


ALEKSANDAR RAŠIN
A licensed mountain guide-instructor with decades of experience in high-altitude expeditions worldwide. He obtained his education in mountaineering at the Faculty of Sport and Psychology in Novi Sad and the Faculty of Sport and Physical Education in Belgrade, where he specialized as an operational mountaineering coach.

Throughout his career, he has participated in over 40 high-altitude expeditions, including ascents of Manaslu (8,163m), Mount Everest (8,848m), Aconcagua (6,961m, 12 times), Denali (6,190m), Island Peak (6,189m, 5 times), Damavand (5,671m, 6 times), Ararat (5,137m, 2 times), and many other climbs in the Himalayas, Alps, and Caucasus. He is particularly notable for leading the First Women's Expedition to Tharpu Chuli (5,663m) during the catastrophic earthquake in Nepal in 2015.

As the President of the Commission for High-Altitude Mountaineering and Expeditions of the Mountaineering Association of Serbia (2014–2022), he actively contributed to the development of the mountaineering community. He has been classified as a top-level athlete and holds the title of Meritorious Athlete of the Republic of Serbia. A calm and reliable leader in extreme situations, he is known for his warm and humorous approach to leading expeditions, as well as his mental stability. Since 2022, he has held the position of Chief of the Guide Service of the Mountaineering Association of Serbia.…


GORAN FERLAN
Goran Ferlan began his career in sports as a marathon runner, participating in over 50 marathon races all around the world.

Following that, in 1996, he began his career as an alpinist. Climbing four peaks over 8000 meters in height, Goran has additionally participated as a guide in the following expeditions: Kala Patthar (5545m), Aconcagua (6956m), Mont Blanc (4807m), Cho Oyu (8201m), Ama Dablam (6812m), Mount Everest (8848m), Mount Ararat (5112m), Kilimanjaro (5895m), Baruntse (7129m), Shishapangma (8013m) and Gasherbrum II (8035m).

A mountain guide with a great deal of experience, he is also a licensed mountain guide and a member of Mountain guide association of Serbia.…


BOJAN MARIC
Bojan Marić holds a degree in economics by formal education but is, by passion and interests, an explorer and a nature enthusiast engaged in all kinds of outdoor activities. From an early age, on the slopes of Kopaonik and Jastrebac, he developed a curiosity for discovering his homeland. He first skied at the age of five and officially took up mountaineering at the age of 14. Alpinism became a part of his life at 16, and he has since continued to educate and develop himself in outdoor activities through various training programs of the Mountaineering Association of Serbia (PSS) (Member of the Guide Service since 2017, Speleologist since 2018) and the Mountain Rescue Service (GSS) (Member since 2012).

Dedicated to the mountains through mountaineering and high-altitude climbing, via ferratas, sport climbing, alpinism, canyoning, kayaking, and mountain biking, he particularly stands out for his work in the GSS and his explorations of the most remote parts of the world (from Hawaii to Japan, and from Alaska to Tierra del Fuego and South Africa). His passion for nature and challenges has driven him to explore various mountain ranges across the globe. The list of well-known peaks he has climbed includes some of the most significant ones, such as Matterhorn (4,478m) in Switzerland, Huayna Potosi (6,088m) in Bolivia, Cotopaxi (5,897m) in Ecuador, Fuji (3,776m) in Japan, Grossglockner (3,798m) in Austria, Half-Dome (2,694m) in the USA, Pulpito del Diablo (4,000m) in Colombia, Jebel Toubkal (4,167m) in Morocco, Mount Kinabalu (4,095m) in Malaysia, and many others.

Through his passion for exploration, he has traveled to over 60 countries worldwide, experiencing diverse landscapes, cultures, and extreme natural conditions. His experience in various disciplines has made him a versatile adventurer capable of navigating the world's most challenging terrains. Bojan is recognized for his ability to adapt to different environments, whether in icy mountains, dense jungles, or arid deserts. His extensive experience in mountaineering, combined with his knowledge of survival skills, makes him a respected figure in the outdoor community. Always seeking new challenges, Bojan continues to push his limits, inspiring others to explore and respect nature while promoting the values of adventure, perseverance, and environmental awareness.…


NIKOLA AJDUKOVIC
Nikola Ajduković is a licensed mountain guide according to UIAA standards and an experienced alpinist, known for his technical skills and professional approach. Born in 1979 in Belgrade, where he still lives with his wife and son, Nikola developed a passion for nature from an early age, spending holidays in the mountains of Serbia and Croatia. This love quickly grew into a serious dedication to disciplines such as mountaineering, trekking, alpinism, and sport climbing.

During his career, Nikola has climbed more than 250 peaks, most of which are above 2,000 meters above sea level, with a high success rate. His philosophy, "act like an athlete, think like an engineer," allows him to maintain stability, focus, and professionalism even in the most demanding situations. In addition, he has climbed more than 200 alpine and sport climbing routes across Europe and the world, continuously improving his technical skills. His international achievements include leading expeditions to Island Peak (6,189 m) in the Himalayas, where he has so far guided 28 climbers, as well as to Kilimanjaro (5,895 m). These expeditions confirm his expertise, dedication, and ability to inspire others to overcome their limits. Nikola has successfully led and assisted more than 1,000 climbers in reaching their peaks and goals. As a member of the Belgrade Alpine Section, he actively contributes to the development of alpinism and mountaineering in Serbia. He is also engaged in the education and training of new generations of climbers, passing on his rich experience and knowledge.

In addition to his passion for the mountains, Nikola is an engineer by profession, which has helped him develop a systematic and analytical approach to climbing and guiding. He applies this knowledge in planning, risk assessment, and decision-making in extreme conditions, making him a reliable and respected leader in the field. His extensive experience, combined with a calm and rational approach, makes him one of the most trusted guides for high-altitude expeditions. Whether leading climbers to the world's highest peaks or teaching technical climbing skills, Nikola remains dedicated to promoting safety, discipline, and the adventurous spirit that defines true alpinism.…


TOMISLAV TOPALOVIC
Tomislav Topalović is an experienced mountaineer, alpinist, sport climber, and mountain guide with over 25 years of experience in the mountains. His passion for exploration, climbing, and the development of outdoor infrastructure has led him to participate in significant domestic and international projects.

Tomislav is a Category II mountain guide according to UIAA standards and is also trained as a guide for via ferrata and canyons. As the mastermind and executor of the longest via ferrata in Europe on Mount Berim, as well as the via ferrata on Mount Mučanj, Tomislav has left a significant mark on the development of mountaineering infrastructure. Throughout his career, he has participated in numerous expeditions around the world, including climbs of Kilimanjaro in Africa, Island Peak in the Himalayas, as well as mountain peaks in the Alps and the Balkans. As an active alpinist, Tomislav has completed more than 50 first ascents, equipped over 100 sport climbing routes, and has climbed over 1,000 sport routes. For more than 20 years, he has been a member of the Belgrade Alpine Section, where he also served as president. Additionally, Tomislav has many years of experience as a guide for numerous canyons in the region, where he has participated in the exploration and organization of canyoning tours.

In addition, Tomislav is involved in various outdoor sports. He is a passionate lover of alpinism and sport climbing, with a particular focus on the Balkans, where he has explored and equipped routes. He also participates in alpine courses as a demonstrator and instructor. He is an experienced kayaker, having explored mountain lakes, rivers, and shores in Serbia, Greece, Montenegro, and other countries, both on calm and fast waters. He is actively involved in backcountry skiing, combining his love for winter sports with exploring high mountain regions, and he is a certified rescue diver (PADI) with experience in underwater world exploration. He is also a passionate explorer of mountain trails and hidden natural beauties and is involved in MTB cycling. Tomislav is dedicated to promoting mountaineering and outdoor sports through infrastructure development, training, and organizing adventure activities. His work and passion contribute to raising awareness about the importance of nature and healthy living.…


NENAD PETROVIC
Nenad Petrović, born in 1973, is a licensed Category 2 guide (MB 507) and has been serving as a guide for the Mountaineering Association of Serbia (PSS) since 2014. He has completed both summer and winter alpine courses at the Belgrade Alpine Section, a mountaineering orientation course, as well as via ferrata training.

He leads the Basic Mountaineering Training at EST. Over the years, he has climbed dozens of mountain peaks both domestically and abroad, in both summer and winter conditions. He does not aspire to great heights but rather to a quality experience in nature, although he has led teams on Kilimanjaro and in the High Atlas multiple times.

A tireless observer of flora and fauna, he loves camping and studies natural foraging. In addition to mountaineering, he enjoys swimming, cycling, mushroom foraging, and learning languages recreationally. His guiding motto is: "Knowledge is worthless if it is not shared."…


SONJA PAVLOVIC PETROVIC
Sonja Pavlović Petrović, a licensed Category 2 guide with the Mountaineering Association of Serbia (PSS), has been involved in mountaineering since 2006. Her passion for high-altitude mountaineering developed after her first encounter with the Durmitor mountain, leading her to complete a winter high-altitude mountaineering school, followed by both summer and winter alpine courses at the Belgrade Alpine Section, as well as a mountaineering orientation course.

She has successfully climbed dozens of peaks over 2,000 meters in both summer and winter conditions. Among her most invaluable experiences, she highlights the preparation and participation in the first Serbian women's expedition to the Himalayas. She believes that a strong team and mutual support are the key ingredients for successful mountaineering tours. Some of the most cherished moments of her mountaineering career include summiting Mont Blanc (4,810 m), Tharpu Chuli (5,369 m), and Ararat (5,137 m).

As part of the Basic Mountaineering Training at EST, she actively participates in the education of new mountaineers. For her, mountaineering is not just a hobby but a way of life that has shaped her character, strength, and endurance. Her goal is to inspire others, especially young people, to explore the beauty of nature, properly understand the challenges of high mountains, and safely enjoy mountaineering activities.…


JOVAN MIHAJLOVIC
Jovan Mihajlović was born in 1992 in Zaječar and currently lives and works in Belgrade. He has been involved in mountaineering for 14 years, during which he has gained extensive experience and developed a deep passion for nature, heights, and exploring mountain ranges around the world. As a licensed guide under the UIAA (International Climbing and Mountaineering Federation), Jovan is dedicated to leading and inspiring others to push their limits and experience extraordinary moments in the mountains.

Throughout his mountaineering career, Jovan has successfully climbed over 70 peaks above 2,000 meters, including some of the most renowned European and global mountain challenges. Among these, notable ascents include Dufourspitze (4,634 m), Signalkuppe (4,554 m), Piramide Vincent (4,215 m), and Turkey’s Mount Ararat (5,137 m). Each of these climbs carries a unique story, encompassing both technical challenges and personal moments of introspection and triumph. His expertise is reinforced by numerous trainings and certifications, including guide training, winter alpine training, and first aid training. These skills, combined with his composure, make him exceptionally well-prepared to lead groups, even in demanding and potentially hazardous situations. During his guiding career, Jovan has had the privilege of collaborating with various mountaineering associations, clubs, and travel agencies, leading over 4,000 clients to different mountain summits. His guiding philosophy is deeply rooted in responsibility, safety, and fostering a strong sense of camaraderie among participants. His ability to adapt to different environments and individuals has made him a respected figure in the mountaineering community.

Beyond guiding, Jovan is passionate about sharing knowledge and promoting mountaineering culture. He actively participates in training sessions and workshops, educating aspiring mountaineers on the technical, safety, and mental aspects of the sport. Whether leading an expedition, organizing an educational seminar, or personally conquering new peaks, Jovan remains dedicated to the mountains and the transformative experiences they offer.…


IVAN VESELINOVIC
An experienced Category 3 mountain guide with nearly a decade of experience in mountaineering, leading tours, and assisting colleagues in various outdoor activities such as via ferrata, canyoning, and kayaking.

With the Military Academy as his foundation, he brings a strong sense of order, discipline, and organization, which he applies to all aspects of working in nature. A true outdoorsman, an active skier, and an enthusiast for family hiking trips, he places special emphasis on activities that are both safe and enjoyable for all family members. He has actively participated in leading groups on expeditions, with a particular focus on safety, team coordination, and mental preparation. Among his most notable expeditions are Cayambe (Andes) and Kilimanjaro.

His other great passion is running, making him a regular participant in the Belgrade Marathon. In recent years, he has successfully combined his love for mountains and running, and he is often seen competing in OCR and trail races.…


HAMZALIJA HUNDUR
Hamzalija Hundur completed medical school in Sarajevo, where he earned the title of doctor. During his studies, he showed a particular interest in physical activities and health, which led him to explore the connection between nature and human well-being.

He dedicated himself to mountaineering, via ferrata climbing, sport climbing, and alpinism from a young age. His passion for nature and the challenges of mountainous terrain led him to explore various mountain ranges. The list of notable peaks he has climbed includes significant summits such as Kilimanjaro (5,895m) in Tanzania, Ararat (5,137m) in Turkey, Kazbek (5,033m) in Georgia, as well as numerous peaks in the Alps, both through hiking and alpine climbing. In the Balkan region, he has achieved great success, having climbed over 50 peaks above 2,000m. He has also actively participated in educating young mountaineers through workshops and seminars. He is an assistant at the Sarajevo School of Alpinism, where he also gives lectures on altitude sickness and injuries in alpinism.

His mission is to inspire young people to lead a healthy life and develop a love for nature. He has organized numerous tours and mountaineering expeditions, including a journey through the Himalayan peaks, reaching as far as Everest (8,848m). Hamzalija Hundur is a true example of how a love for nature can go hand in hand with professionalism and contributions to the community. His dedication, both in the medical field and in alpinism, serves as an inspiration to many around him.…


DANIJELA BUCIĆ PETEŠIĆ
Danijela grew up in Paklenica National Park (Velebit) and that made her life calling a bit easier to choose. Today, Danijela is a professional mountain guide with a license from the Croatian Mountain Guides Association and an international UIMLA license. She is an active member of PD Paklenica and vice president of the Association of Mountain Guides of Croatia.

She has been an active climber since 2004. and since then, she has participated in many trail and adventure races. She is also an organizer of several trails and vertical races in Croatia, and the coordinator of the Coastal & Mountain Trails league. She loves nature and mountains, exploring new destinations, is a great friend and a wonderful colleague.…


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