If you want te see the islands underwater terrain well you just come to a right place

First: leave an orbit camera on rather krakabloa or Wright the orbit camera should be detached to your plane and leave it there

Second: fly to krakabloa or Wright

Third: if your in krakabloa or Wright

Fourth: go to the cam you let of the Wright or krakabloa it works when the game is pose if you unpose it it will be submerged agen

Fifth: enjoy your explore