Oh for Pete's sake, there is a radio tower out there and that is land. Get a grip! Also, check out the 3 photos and see that your "wall of water" doesn't change shape...kind of like LAND!!
I'm with you. If you do a google search on this beach, you'll find there are rock formations all over the place. If you look at a map, this appears to be taken at such an angle and with the lens that they are catching either a large formation or the mainland it is attached to. This peninsula kind of bottlenecks and then widens.
I would recommend to anyone who thinks that is water to do a simple search and look at the resort pics and other pictures to see the landscape of the area.