I think we're using different definitions of 'cave', but the jump I was speaking of (for getting on top of what seems to be a cave entrance) does seem to have gotten somewhat easier.
Ah, you've found a bug! you shouldn't be able to jump up on top of the cave from the tree branch as have to go through the entrance at the bottom (behind the boulder) to get into dungeon/cave. I've lowered the branch to fix this.
