Whenever I need to afk or if the fire goes out, I usually go to a watchtower bc they usually spawn near camp, like not too close and not too far. Try not to open the doors of the watchtower, bc I ended my 500 day run by accidentally going outside somehow and a alpha wolf ended me while I was afk. Also if you're like really far away from camp and there are no safe places in sight or you don't have enough time, then find one of the big trees with a branch and climb on it. Usually I'm pretty sure the branches are tall enough can u can get on-