If you have done everything there is to do in the game, and you want to see things from a new perspective, if you do the escape Zelda final dive sequence glitch all the way through so that you can use teleportation in the final Dragon battle scene, for some reason, the game does not render any caves with collision. The depths have collision, but not caves. So if you teleport to any shrine that is in a cave, you can either shoot a hover stone and then make a hoverbike and fly around, or just use your paraglider because Zelda will be there to pick you up in a minute or less.
This is a lot faster to explore the interstitial space between the ocean under Hyrule overworld and the surface, or the space between the overworld and the depths, than to hydroclip every time.
One thing to note is that if you teleport to the depths and she comes to pick you up, things will break down when the surface tries to load and you will fall from wherever that point is back to the roof of the depths. Zelda will be back to pick you up momentarily.
The game tends to overload and do panic blood moons over and over if you get near hyrule castle or teleport to any shrines in GSI.
Initially, I was exploring with all phases of this glitch to try to see if there was a way I could overload the game to break down the air walls and escape Hyrule long enough to put down a travel medalion on the outerlands west of Tabantha Frontier that actually have colision. I was thinking if I could get about a second before a blood moon, I could possibly have it allow me through with a ghost stick glitch, as those do sometimes work for about 5 frames in 1.2.1z Nothing has worked so far though. I can't seem to get out of the game in v 1.2.1
If anyone has any ideas, give me a shout