Port Aransas and South Padre Jetties
These two sites are especially interesting since in the summer time there are various tropicals such as damsels and butterflyfish, as well as game fish such as snook and sheepshead. There is a lot of algae, barnacles, and crabs on and in the rocks, and at South Padre, I have personally seen 10 sea turtles (most of them Kemp's Ridleys, but a couple of greens too) in just and hour and a half while snorkeling there one July. The south jetty at Port Aransas, TX (channel side) is a good shore dive/snorkeling spot for late spring to early fall with visibility in the 5-25ft. range with an incoming high tide. Depths are about 7-14ft. along the large granite boulders. Also the north jetty at the southern tip of South Padre Island is a good shore diving/snorkeling spot (Gulf side, but may be good channel side too) with similar visibility and depths along the rocks.
