Yes, thanks for posting this, I went and tried and I have gotten up there. I am not sure what it means though... Something something ocean symbolizes freedom. I have posted a picture below the gap, which you can use as a hint for how to do it if you want. It looks like you'd be able to get an even more interesting result if you could do it while flipped, but I do not think it is possible.
(also, to the dev: I encountered a weird bug while messing around with trying to do this in different ways, where it started going instantly to credits after entering the portal. Eventually it seemed to fix itself though.)
(SPOILER GAP)