Here's a view of the North Jetty in Galveston. My limited saltwater fishing experience has centered around the North and South Jetty. The huge ships and strong currents make this area an interesting and sometimes daunting place to navigate. I have a great deal of respect for the water but especially in this area. The wake from some of the ships passing through this channel makes me wish for a bigger boat.
I have caught several fish near the orange weather station located in the center of this picture which is on the channel side of the jetty. The depth of the water near the jetty on the channel side is approximately 35 feet and about 25 feet on the Gulf side. If you look closely, you can see the top of a sail boat that was just recently wrecked in the rocks on the channel side of the jetty.
Here's the tip of the North Jetty. Also a great fishing spot especially in the spring and the fall. One of the popular Galveston fishing guides anchors right at the tip of the jetty and positions his boat so he can fish both the channel and Gulf side of the jetty. The currents are usually strong near the end of the jetty, so I usually prefer not to anchor there but I believe the constant movement of water makes it a good fishing spot. Crystal Beach can be seen in the far background of the picture. I have never ventured close to the beachfront mostly because it is really shallow (about 5 feet) even one mile from shore but I understand it can be fun in the summer for trout and sharks.
Here's a great picture of the Galveston Yacht Basin (GYB) which is where we launch the boat. It's a great place to start and end the day. Seeing these pictures makes me wish I could make it down to Galveston soon for some fishing, but it will likely be a few months.