United States

From Denali's brutal cold to Utah's sandstone canyons and a swarm of tornadoes on the Great Plains — America's extremes are as geographically scattered as the country itself.

7 extreme lines

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Extreme Jump · Moab, Utah

BASE jumping & cliff diving, Moab

INSANERisk: EXTREMEFree

Utah's red-rock desert around Moab is one of the most active legal-and-grey-area BASE jumping zones in the US, with sandstone towers like Castleton and Ancient Art offering both climbing objectives and jump exits within the same formation.

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Rock Climbing · Yosemite National Park, California

Big wall climbing, El Capitan

INSANERisk: SEVEREFree

A 900m sheer granite monolith and the benchmark big-wall climbing objective on the continent — multi-day ascents with climbers sleeping in "portaledges" bolted to the vertical face, on routes that have defined the sport since the 1950s.

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Mountaineering · Denali National Park, Alaska

Denali summit expedition

INSANERisk: EXTREMEUSD Guided expedition US$10…

North America's highest peak at 6,190m, and one of the coldest mountains on Earth relative to its altitude thanks to its extreme sub-Arctic latitude — a 2–3 week self-supported expedition hauling sleds across the Kahiltna Glacier, with wind chill regularly reaching –40°C or lower on the upper mountain.

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Ice Climbing · Ouray, Colorado

Ice climbing, Ouray Ice Park

ADVANCEDRisk: MODERATEFree

A purpose-made ice climbing park in a narrow gorge through the middle of town, where park staff hand-irrigate the canyon walls each night to build and rebuild hundreds of routes across the season — one of the few places on Earth engineered specifically for ice climbing.

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Volcano Trekking · Hawai'i Volcanoes National Park, Big Island

Lava viewing, Kīlauea

ADVANCEDRisk: HIGHUSD Guided lava hike US$150…

One of the most consistently active volcanoes on Earth — when eruptions are active, guided hikes across cooled but still-warm lava fields get close enough to feel radiant heat off glowing fissures, with access and routes changing eruption to eruption.

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Off-Road Expedition · Great Plains (Texas to South Dakota)

Storm chasing, Tornado Alley

ADVANCEDRisk: HIGHUSD 7-day tour US$2,500–3,5…

Multi-day guided road expeditions that chase and intercept supercell thunderstorms and tornadoes across the Great Plains during peak season — long driving days punctuated by minutes of genuine, close-range severe-weather exposure that guides spend the rest of the time positioning to avoid turning dangerous.

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Whitewater · Colorado River, Arizona

Whitewater rafting, Grand Canyon

EXPERTRisk: HIGHUSD Full-canyon expedition…

A full 225-mile, 1–2 week expedition through the entire Grand Canyon on the Colorado River, running over 150 rapids including the Class V Lava Falls, with mile-high canyon walls that make helicopter evacuation the only realistic exit for most of the trip.

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