This beach is in Bgy. San Rafael, Puerto Princesa City, Palawan. It is one of the finest examples of an "armored beach," not so nice to look at but it is one natural way of protecting the coastline from erosion. I took the shot mainly because of the fine blue color of the sky.
More about Palawan at "Palawan FORUM" (http://freepalawan.com). See you there!