For anyone who wants to try it out, my favorite place ever is Craters of the Moon National Monument. So many lava tubes to explore. And protip the people that

For anyone who wants to try it out, my favorite place ever is Craters of the Moon National Monument. So many lava tubes to explore. And protip the people that actually do it as a hobby tend to call it caving not spelunking :) Would love to hear HNer recs on caving spots