Trevor McGarry

Trevor fell into the outdoor world by starting as a teacher at The Boundless School more than a decade ago.  Mixing his passion for teaching and guiding Trevor has made the rivers of the Ottawa valley his home and office. Currently, the Operation’s Manager at Paddler Co-op, a not-for-profit whitewater paddling instructional organization, Trev loves engaging others in the outdoor classroom. As a certified school teacher, paddler and gardener Trev enjoys the simplicity of rural life in his cabin in the woods.

Tung Hsiu Hung

Tung Hsiu is a firefighter, an EMT-P and instructor. He has devoted himself to EMS for more than 10 years. Mountain Rescue is one of his duties as a firefighter. Also, he likes hiking. Therefore, he is eager to has further understanding of Wilderness Medicine. He is doing his best to strengthen his professionalism and helping more people to enjoy outdoor life. 

Yuka Hirose

Yuka is a registered nurse who has worked in respiratory medicine for several years. She also has experience working in a nursing home in the remote area of Japan. At the moment, when she is not teaching for WMA, she mostly works for a home visiting care program.

She enjoys a wide range of outdoor activities including camping, hiking, paragliding, kayaking, canoeing, bouldering, and off course, outdoor cooking. Beside those, she also likes traveling overseas to meet people and understand new cultures. Some of the countries she has traveled to are Taiwan, Guam, Fiji, Hawaii, Korea, Tuvalu, Australia, and Canada. 

Tom Rader

Since his first taste of medical training in 2000 at a WFR course, Tom has been actively pursuing medical training. While working as a Paramedic in Dallas, he enlisted in the Navy as a Corpsman (he was told they would send him to some cool medical training), and subsequently got attached to a Marine Reconnaissance unit and deployed (after, of course, going to numerous cool medical courses). While overseas, he developed and taught a Tactical Combat Casualty Course (TCCC) to the Iraqi Brigade Scouts and kept all of his Marines topped off with Motrin.

Since he has been back in the US, he has taken an avid interest in climbing 14ers and mountain biking during his time off. When he is not teaching for WMA, he works for University of New Mexico Hospital developing clinical web applications.

Tony Shope

Tony has over twenty years of pre-hospital experience and is a full time Paramedic and Rescue Services Coordinator for Humboldt General Hospital EMS & Rescue in Winnemucca, Nevada. He spent many years delivering back country emergency care with Search and Rescue units in Ohio, Kentucky, Northern Idaho, and Nevada. Tony was the founder of the Rapid Access Patient Treatment Overland Response Strike Force, a volunteer wilderness medical response unit in northern Idaho.

Tony enjoys the challenges and unpredictability of wilderness response operations. He would rather spend two days in the worst weather in the back country with a critical patient than spend two hours on the road with a critical care ground transport. His love of back country medical response is shared by his wife Victoria and his two young boys. Tony is a very personable and energetic instructor who draws from his field experience as well as his instructor history with ACLS, PALS, ITLS and PHTLS.

Tuo Dawei

Mr. Tuo started outdoor activities on 2000 and spent 5 years in the biggest outward development school of China as safety supervisor. He is skilled in hiking, backpack trekking, mountaineering, ice climbing, SCUBA diving and act as team leader for high altitude climbing more than 10 times.

He took part in outdoor first aid trainings, such as 120 first aid training, in dozen years, set up first aid courses in outdoor trainings, and conducted the courses as a trainer.

Working now at:

Top summit explore company – general manager

Summit outdoor school – vice-president

Top summit explore company is the first specialized corporation in China that focus on advanced travel and exploration all over the world and the main products are exploring at the peak of seven continent and south and north poles. We function to outdoor recreations for different requirements individually.

Summit outdoor school is specialized in public service. They help the participants to establish the proper ideas of outdoor recreations. They devote to be the greatest outdoor school in public training.

Stephanie Leson

Steph is an avid adventurer with a passion for wilderness medicine and technical rescue. In addition to working as a PCP North of 60, she has worked on SAR teams and trained with Swiftwater and Rope Rescue teams. Steph has spent the last decade blending her love of the outdoors with her love of medicine by balancing EMS work as a rural/remote Paramedic with River Guiding/Experiential Education. She has guided rafts and canoes in Ontario, BC and the Yukon and she enjoys sharing her passion with others. When not teaching with WMA Canada, Steph can be found living out of her truck, nationwide, exploring rivers and roads with her dog.

Steven Shomo

Steve Shomo has been using his wilderness medical skills in Search and Rescue, Disaster Response, Humanitarian Relief and education. He is a Wilderness First Responder and a Doctor of Acupuncture and Oriental Medicine, specialized in Integrative and Acute Care. In addition to his private practice, he works with the Bureau of Land Management (BLM), the Medical Reserve Corps, Red Cross, FEMA, the Colorado Special Tactics and Rescue unit, and extensively with Global Heath Community Alliance. He has a strong background in providing care in underserved, conflict, and remote areas as well as treating Acute Stress Response (ASR), Secondary Traumatic Stress, and PTSD.

When Steve is not teaching or providing care he can be found hiking, kayaking, paddle boarding, mountain biking, trekking, snowshoeing, and traveling the world.  

Steve Hahn

Steve has been working and playing in remote environments for over 3 decades. Beginning as a medic in the Canadian Armed Forces in 1988, he developed a passion for providing remote medical care in austere places. Steve furthered his education training as an emergency and critical care nurse, in order to pursue his dream of becoming a flight nurse with the Northern medevac teams. With over 30 years of remote medical experience, he is always excited to deliver relevant and meaningful remote medical solutions to people who live and work in remote places. Always learning, Steve is continually trying to simplify and optimize concepts and gear, in order to facilitate the best care for his students. It is rumoured that he likes to fly fish as well.

Susan Purvis

Susan Purvis is a Lead Instructor with Wilderness Medical Associates, American Institute for Avalanche Research and Education (AIARE), American Avalanche Association (AAA) Professional Member, and Author of her new memoir, GO FIND: My Journey to Find the Lost—And Myself (publish date Oct 2, 2018).


Susan’s love for adventure and medicine has taken her to the hottest, coldest, and highest places on earth; Ethiopia, Antarctica, and Nepal. As a wilderness medicine expert and extraordinary speaker, Susan has worked on film sets for National Geographic Channel, truTV, appearing on the science documentary, The Hottest Place on Earth, aired on the BBC and Discovery. She’s been featured or quoted in the Wall Street Journal, Smithsonian, on CNN, television, numerous magazines, and newspaper articles.


Since 1998, Susan has owned and operated Crested Butte Outdoors International, based in Whitefish, Montana ( Her job is to teach students how to think critically in unconventional settings. In 2002, Susan started a non-profit high altitude medicine program for local Mt. Kilimanjaro and Mt. Everest Guides.


An explorer by passion, Susan combines wilderness medicine, desert survival, exploration geology, K-9 search and rescue to land jobs on seven continents. Susan has served as a medic at a remote field camp and on an ice breaker in Antarctica, explored for gold in the Dominican Republic and Mexico, and produced a documentary in the Amazon jungle. Susan spent a decade working at an urgent care/orthopedic ski clinic in Crested Butte. She has worked as a professional ski patroller, guide, K-9 avalanche expert and SAR member. Susan has been teaching for WMA since 1997 and is a brand Ambassador for Marmot.


When she is not teaching you can find her boating on the cold, clear rivers in northern Montana or in search of the last great powder stash. Go Find is her first book.