Climbing Everest is for normies
Instead what are some of the silliest, most dangerous ways to challenge yourself & your friends outdoors?
I'm talking Spartathalons, making a pilgrimage on foot through a warzone, going up the Hudson on a rowboat, anything that would make a stranger look at you funny if you told them about it.

https://www.youtube.com/watch?v=VJnxYsZNzwM