Sadly, there’s hardly anything here, here are some relevant communities:

!camping@sh.itjust.works
This is sadly the most “active” comm i guess, i liked posting there.
!outdoor@slrpnk.net
I wanted to say there’s hardly any original content there, but it seems like it picked up a little lately.
!outdoors@lemmy.ca
Not much going on.
!bicycle_touring@lemmy.world
Not hiking, but camping and outdoors.
!caminodesantiago@jlai.lu
Basically ran by a single person, but i guess there’s going to be some 70 more posts coming, haha.
!ultralight@lemmy.world
Dead. But it looks like somebody posted something three weeks ago, no reactions though :(

There’s some more or less dead hiking communities too. That’s all i got.