If you are coming to San Antonio for BMT at Lackland, Alamo River is very close and great place to stay. We stayed in an RV, my folks stayed in one of their cabins and the kids camped in a tent.
Didn't fish but plan to come back and so some fishing and bike riding in the woods. Saw lots of deer and it was very quiet and peaceful.
So close to the Alamo and we enjoyed our stay, really liked that they gave us the Military Discount.