Dave MacLeod: The 24/8
Established by Dave MacLeod on the March 19, 2018, the "24/8" might be one of the hardest all-around climbing challenge there is: an 8A (V11) boulder, a 8a (5.13b) sport route, E8 (~5.13c) trad route, an VIII 8 winter route, and 8 Munros, all in under 24 hours.