I was in the gale manor at the place where you find the chest, and I got teleported to the start of the lightning section of the Flower Isle.
I don't know how I actually did this, but somehow when I spammed dash a lot in the beginning of the game I got teleported to around the middle of the game. I've tried to replicate the glitch, but I can't seem to do it. I'm on the PC version.
