Still not sure how deep it is either.
Maybe 10 meters.It's pretty hard to judge on a picture like that.
The problem is that I can't see if there is an opening at the bottom.
Going to have to take a trip down into it ,
Um, use the built in ladder?
Oh, sorry. I couldn't see that.I can't get to it, I need to climb that block to get to the ladder.
I wish they had built one on the outside as well.