Logo for LowestHighest, showing the three teammates, including André Kajlich, who are attempting to summit Aconcagua.

Wheelchair users have done some crazy things over the years — think Rick Hansen’s round-the-world push or Mark Wellman’s climb of El Cap — but an expedition currently underway is likely to wind up near the top of the list. André Kajlich, who uses a manual wheelchair due to double above-the-knee amputations, has partnered with two other disabled adventurers to trek from the lowest point to the highest summit on every continent.