If you know any two rock climbers by name, they’re probably Alex Honnold and Tommy Caldwell. The elite climbing duo have repeatedly captured the world’s attention with bonkers accomplishments, from their traverse of the Fitzroy range in Patagonia to an epic enchainment in Rocky Mountain National Park. It doesn’t hurt that their jocular dynamic makes insanely dangerous adventures feel like Hollywood buddy comedies.
Now climbing’s odd couple might face their biggest challenge yet: riding bicycles really, really far.
According to their social media posts, Caldwell and Honnold plan on cycling from Colorado to Alaska. The 2,000-mile trip will also include some climbing (no details yet) and learning about climate change’s impact on the environment.
“A couple days ago Alex and I set off on what I think is likely to become our biggest adventure (at least in terms of calorie expenditure) to date,” Caldwell wrote on Instagram over the weekend. “We have some ambitious climbing objectives, and we’ll be passing through a bunch of environmentally sensitive areas. I figure if you want to learn to love the planet enough to find ways to protect it, sometimes you need to immerse yourself in it as deeply as possible.”