I had just tamed one and was flying back to base on my Argentavis when I had an idea to glide back to base.......it took me 2 days, I was scared I would've landed on the mountain slope and gotten killed by a Griffen, but I ended up overshooting my base and almost landed in the sea (I was playing on island and my base was the point northeast where east and north met, so I nearly landed in meg+manta infested waters)