You take one last look into this seemingly empty gateway, take a breath and step through
Behind you is a beam of light stretching up into the sky from the gate, salty wind whips past.
The crunch of coarse glassy black sand reflects nothing of the starless sky. Ahead, waves breaking- its the gulf between worlds

The beach is dotted with those purple flowers again, far more here just at the edge of the tides, and others in varying stages of wilt as those tides wash over their stalks.

It really is the end of the road here, without a skilled mariner or help from some insanely powerful being, to touch the water is to be annihilated and returned to a neutral state.

Outer-Realities Example here