With RMI
Sean grew up in Sheffield, UK and started rock climbing on both limestone and gritstone and scratchy mixed winter climbing in Scotland in the 1980s. He currently has a home with his wife and 3 dogs in Dallas, Texas but is also a resident of France and has guided all of the iconic peaks in the Alps multiple times. He lived in Dubai for 20 years which is a short 3 hour hop from the Himalayas and led 18 8000m expeditions, including 4 to Everest North side and 1 on the South side. His favorite sport crags are Red River Gorge, Kentucky and anywhere in Spain. A serial traveller he has probably filled more passports with visas than most and there are not many mountain range he hasnt climbed in from South America, New Zealand, Central Asia, Africa, Japan, Europe.
In his free time, apart from climbing, Sean runs, bikes and swims and dreams of past glories of racing Ironman triathlon. He is also a keen golfer.
18 | 8,000m Peak Expeditions (Everest North ×4, Everest South ×1), Himalaya
10 | Aconcagua, Argentina | 22,841' (expeditions)
10+ | Mont Blanc, France | 15,777'
5+ | Matterhorn, Switzerland
1 | Eiger, Switzerland
1 | Grandes Jorasses, France/Italy
1 | Arête du Diable, Mont Blanc du Tacul, France
1 | Mt. Logan, Canada | East Ridge
1 | Dykh-Tau, Russia
1 | Mt. Elbrus, Russia
1 | Mt. Damavand, Iran | winter ascent
1 | Khan Tengri, Kyrgyzstan
1 | Lenin Peak, Kyrgyzstan
Multiple | Ecuador Volcanoes, Ecuador
1 | Jebel Misht, Oman | French Pillar
2 | Ama Dablam, Nepal | 22,349'
Multiple | Ski Mountaineering (France, Switzerland, Kyrgyzstan, Georgia, Spain; Haute Route Chamonix–Zermatt)
Multiple | Rock Climbing | up to 5.14a
RMI Expeditions Guides are required to hold a number of certifications, but many go above and beyond with their technical and outdoor training. We actively encourage (and provide funding for) our guides' continuing education.
November 2, 2025
Program Name
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Mountaineering
The Five Day Rainier Climb offers the classic Mount Rainier experience with added time, margin, and flexibility built into the schedule, allowing teams to move deliberately, adapt to conditions, and fully engage with the mountain rather than rushing to meet a narrow summit window. That extra day provides the flexibility to choose the best timing for summit day (especially valuable when weather is less predictable) making it ideal for first-time Rainier climbers and anyone seeking a deeper immersion in one of North America's most iconic glaciated peaks.
The climb begins with a half day orientation at BaseCamp, then a full day of mountaineering school on the mountain, then spends two nights at Camp Muir in the private hut RMI uses — the only guide service with its own shelter there, giving climbers time to acclimatize, refine movement skills, and recover between efforts. Throughout, you climb in small rope teams at a 2:1 climber-to-guide ratio for closer instruction and more individual attention. Before and after the climb, your team is based at Rainier BaseCamp in Ashford, home to the BaseCamp Bar & Grill, Whittaker Mountaineering, and Whittaker's Bunkhouse.
November 2, 2025
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Leadership
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