ICW
The ICW down that way is a lot different than the east coast. There are far fewer boats, far fewer marinas, and more shallow water than you can imagine. South of Corpus it gets pretty desolate, and it is like going back in time. The few marinas don't have courtesy cars, and most have no repair facilities, south of the Corpus Christi, Rockport area. If memory doesn't fail me, the average depth of the Laguna Madre once your south of Corpus is 1.5 to 2 feet. Once you leave Corpus, you are committed to inside or outside to Port Mansfield, the next inlet. Roughly 100 miles. And from Mansfield to Port Isbell, it is the same deal and approx. the same distance. In the ICW not much chance of an anchorage or stopping point. About the only way to stop is to tie up to some barge dolphins. There are a very few deeper holes, but they are scarce. Make sure you have a good, working depth finder. Most of the time in the deeper holes, if you can find one, the bottom is sand/mud and the holding very good. Fishing for redfish and trout is also excellent.If I were doing that trip for the first time, I would certainly take the ICW at least one way, just for the scenery and the wildlife. This is part of the King Ranch, and they raise lots of exotics for hunters. It is not uncommon to see a herd of Nilgai along the shore line. And tons of deer, turkey, javelina, and others. But offshore is nice sailing, and the winds most of the year are fairly brisk. The seas down that way seem to be a little rougher than they should be, but certainly not so big as to be dangerous. If your going south offshore, be sure to check the gulf loop currents. You may have a two or three know current on the nose. If going to go inside one way, and outside the other, I would go inside going south, and outside coming back north.