Mount Sidley Climb
$51,875 USD
January 10th – 21st, 2027
At 14,058 ft (4,285 m), Mount Sidley is Antarctica’s highest volcano and one of the elusive Volcanic Seven Summits. Remote, rarely climbed, and set deep within the stark beauty of the Polar Ice Sheet, Sidley offers an expedition unlike any other.
First summited in 1990 by New Zealander Bill Atkinson, the peak has seen only a handful of ascents since. Its broad, 3-mile-wide caldera and sheer amphitheater walls—born of an explosive eruption 4.7 million years ago—create a landscape that is as geologically fascinating as it is visually striking. Blue-ice slopes and otherworldly snow formations line the upper mountain, culminating in views that stretch endlessly over the frozen continent.
This is your opportunity to join the ranks of climbers who have stood on the summit of Mount Sidley with the vast expanse of Antarctica below your feet. Summiting Mount Sidley is more than just a climb – it’s an expedition of a lifetime, an experience that will leave an indelible mark on your soul forever.
Please note: Climbing Mount Sidley is a serious undertaking meant for climbers with prior experience in the cold and some climbing skills. Guides will work with clients throughout the expedition to provide safety, advice, logistics, technical guidance, and information to best ensure the clients’ summit success.
All prices are in US Dollars.
CTSS requires clients to buy trip insurance for all expeditions. For more information, please see our page on trip insurance and cancellation policy.
All payments, once submitted, are non-refundable and non-transferable. If balances are not received by specified dates, the client forfeits their place on the program and any prior fees paid.
This itinerary is only a rough estimate and will be determined by weather and acclimatization. This is adventure travel, meaning things rarely go as planned, and this schedule will likely change. Climbers need to be adaptable and positive. We always recommend climbers arrive in Punta Arenas one day early to avoid travel delays or issues with lost baggage. Added expenses (e.g., hotel, food, or sightseeing) of this extra day are the client’s responsibility. Please let us know if you want us to arrange logistics for early arrivals or for a single-rooming option.
- Day 1: Arrive in Punta Arenas, Chile
- Day 2: Team breakfast, gear checks, expedition briefing
- Day 3: Luggage check-in and cocktail evening with Antarctic flight service
- Day 4: Fly to Union Glacier, Antarctica
- Day 5: Acclimatization hikes around Union Glacier
- Day 6: Acclimatization hikes around Union Glacier
- Day 7: Fly to Mount Sidley
- Day 8-13: Climb and summit Mount Sidley
- Day 14: Fly back to Union Glacier, Antarctica
- Day 15: Scheduled flight from Antarctica to Punta Arenas, Chile
- Day 16: Fly home
- Day 17: Contingency day
Our expeditions are designed to be fully inclusive, except for some services/items of a personal nature like flights, gear, insurance. Here’s a detailed list so you know what to expect.
Included:
- Professional mountain guides
- Flights to and from Punta Arenas, Chile, to Union Glacier, Antarctica
- Flights to and from Union Glacier, Antarctica, to Mount Sidley
- Checked luggage up to 55 lbs (25 kg) to Antarctica
- Three nights' lodging with double occupancy in Punta Arenas, Chile (two nights before the expedition and one night after). Any additional nights due to delays, etc., will be at your own expense.
- All expedition food on the mountain, including breakfast, dinner, snacks, and hot drinks. In addition, all breakfasts at the hotel in Punta Arenas, Chile, are included.
- All team gear, including four-season tents, cooking gear, group duffels, stoves, etc.
- Satellite phone to update the CTSS blog and available to clientele at $3/min
Excluded:
- Flights to and from Punta Arenas, Chile
- Transportation from and to the airport in Punta Arenas
- All in-town restaurant meals (breakfast is provided) and specialty mountain lunch food
- Luggage over 55 lbs (25 kg) to Antarctica
- All personal climbing gear is the responsibility of the client
- In the event of a rescue, evacuation, or early departure from the group, the client is responsible for any rescue expenses incurred or excess expenses above and beyond our normal trip costs, including transport, hotels, evacuation, flight changes, and gear shipping.
- Guide tips (customary but optional)
- Costs incurred as a result of events beyond the control of CTSS above and beyond the normal expedition costs
- Required trip insurance policy (for trip cancellation, interruption, rescue & evacuation, medical treatment, repatriation, etc.)
