Firstly, thank you for going through that much effort to reply, I appreciate it! I tried that once (one of the first things I tried) and went SPLAT. Guess I wasn't spot-on, so I'll give it another shot. Mipha's Grace saved me on that fail, lol.I remembered my old login from a million years ago just to reply to this comment. Lol. Once you have the ceremonial trident in hand, go on top of the waterfall, jump off and hover, line yourself up with the platform at the base, and do an attack from the air and land on the platform. The mini dungeon opens up. Also, I'm pretty sure beating the area is a requirement. If I didn't have the Mipha's Grace, I would have died.