The Four Day Rainier Climb is the classic route to the summit of Mount Rainier and the most common path climbers take into high-altitude mountaineering, following the standard south-side routes through glaciated terrain to one of North America's most recognizable peaks. It's a serious alpine objective that rewards preparation, fitness, and focus — for many climbers, the moment mountaineering becomes real, yet still within reach of well-prepared first-timers. Being able to say "I've been on top of that" while driving I-5 or flying out of Sea-Tac is an incredible achievement.

The climb begins with a half day orientation at BaseCamp, followed by a full day of mountaineering school on the mountain, then ascends to Camp Muir, where teams stay in the private hut RMI uses — the only guide service with its own shelter at Camp Muir. Throughout, you climb in small rope teams at a 2:1 climber-to-guide ratio — closer instruction, steadier pacing, and more attention on summit day. Before and after, your team is based at Rainier BaseCamp in Ashford, home to the BaseCamp Bar & Grill, Whittaker Mountaineering, and Whittaker's Bunkhouse.

Rising above Ecuador's Avenue of the Volcanoes, Cotopaxi is one of the most recognizable peaks in the Andes and one of the world's highest active volcanoes at 19,348 feet. Its near-perfect conical shape, massive glaciers, and accessible technical terrain have made it one of the premier high-altitude climbing objectives in South America for generations of mountaineers. The Cotopaxi Express delivers the full experience of this iconic peak in nine days, from arrival in Quito to summit and home.

The program is built around a smart acclimatization sequence. Two days of cultural exploration and hiking in Quito are followed by an acclimatization climb on Illiniza Norte, a nearby peak that takes the team above 15,000 feet before they ever set foot on Cotopaxi's glacier. A skills review on the glacier near the Jose Ribas Refugio the day before summit day ensures climbers are confident and prepared for the crevasse fields and steep final slopes above.

What makes this program work for intermediate climbers is the combination of efficiency and depth. The nine-day format is compact, but nothing is rushed. The cultural experience of Quito is genuine, the acclimatization is properly sequenced, and the guiding on the mountain reflects decades of RMI experience on Ecuadorian peaks alongside a local guide team that knows Cotopaxi as well as anyone.

There are mountains, and then there is Vinson. At 16,067 feet above the Ellsworth Mountains, less than 660 nautical miles from the South Pole, Vinson Massif is the highest peak in Antarctica and one of the Seven Summits. First climbed in 1966, it sees only a handful of visitors each year. The landscape surrounding it has remained essentially unchanged since the last ice age. Reaching it requires a flight from Punta Arenas, Chile, landing on a blue ice runway at Union Glacier, and a ski-plane flight into a base camp that sits at the edge of one of the most pristine and remote environments on earth. Getting there is already an achievement.

The climb itself moves through that environment with two high camps established on the way to the summit ridge. The route is not technically extreme, but Antarctica demands respect: the cold is serious, the weather is unpredictable, and the scale of the place is unlike anything else in mountaineering. The itinerary is built with enough time to acclimatize properly and wait for the right conditions, because on Vinson, patience is part of the climb.

Summit day is among the most singular experiences available anywhere in the sport. From high camp at 12,400 feet, the views open onto an expanse of ice and silence that stretches further than the eye can follow. The final push up the summit ridge is steep and exhilarating, and the summit itself offers a perspective that almost no one who has ever lived has had the chance to stand on. For climbers pursuing the Seven Summits, Vinson is the one that reminds you why you started.

The McKinley Prep Course is a five-day training course designed for climbers preparing for an expedition to Mount McKinley. Rather than pursuing a summit objective, this program focuses on the systems, skills, and decision-making required to operate effectively during a long, cold, glacier-based expedition.

Held on Mount Rainier in winter conditions, the course uses terrain and weather that closely resemble what climbers encounter on McKinley. Participants spend their time hauling sleds, establishing expedition-style camps, managing loads, and practicing core glacier travel and rescue techniques. The emphasis is on repetition, efficiency, and understanding how systems function together over multiple days in a cold, demanding environment.

This seminar is intentionally practical. Climbers use the course to test gear and apparel, refine camp routines, and build familiarity with the physical and mental rhythms of expedition life. Classroom instruction is paired with extensive field time, allowing participants to connect technical skills with real-world application. While the course includes detailed discussion of McKinley-specific logistics and challenges, it does not include a summit attempt of Mount Rainier and should be viewed as preparation rather than a substitute for expedition experience.

The Little Tahoma Climb offers a unique alpine experience on one of Mount Rainier’s lesser-known satellite peaks. Rising sharply from Rainier’s east side, Little Tahoma feels removed from the crowds and systems of the main mountain, delivering a climb that is engaging, varied, and surprisingly committing for its size.

The route combines glacier travel with an increasingly dramatic finish, culminating in an exposed rock scramble near the summit. This mix of terrain gives the climb a true alpine character, rewarding climbers with movement skills, balance, and comfort with exposure rather than sheer altitude. The summit itself is sharp and airy, offering expansive views and a strong sense of accomplishment.

Climbed in small teams, Little Tahoma emphasizes quality over scale. The objective is well suited to climbers who already have basic mountaineering experience and want something other than a standard summit push: small teams, a full day of instruction, a single camp for three nights, and mixed snow, ice and rock on a summit that sees a fraction of Rainier’s traffic. It asks for more days than the Four Day Climb, and the trade is a quieter, more technical objective.