Decent, no. But if you insist on diving in Galveston, I have done Offat's Bayou. A few brave folks from CHUM did a trip earlier this year. Below are links to the event (including map to the Bayou, etc) and a trip report. Assuming there was any viz, there is a boat sunk as well as cave line leading to the rock retaining walls where you can do some critter hunting. Viz was near zero earlier in the year.
Dive Event - Offatt's Bayou Feb 23rd
Offatt's Bayou - Feb '13
Your local shop on the island is Island Divers Galveston. Check them out. They can answer questions and point you in the right direction.
Dive Event - Offatt's Bayou Feb 23rd
Offatt's Bayou - Feb '13
Your local shop on the island is Island Divers Galveston. Check them out. They can answer questions and point you in the right direction.