JBSA Canyon Lake is a good place to retreat - but not convenient to San Antonio or Austin (about an hour into SA and about 1:15 into Austin). The nearest "real" shopping is at least 1/2 hour away. On the weekend there were more young campers with a bit of rowdy behavior. During the week, there might be one or two other campers in our area (Randolph AFB side) besides ourselves and the camp host. The Randolph side doesn't feel secure since the gate is left open all night and the gatehouse is only staffed part-time. There are security vehicles on the FT Sam side, but I've not seen them on the Randolph side at all. The lake is pretty and I enjoyed sailing here when I was stationed nearby in the '80. The deer are plentiful and beautiful - will almost come right up to you. We had 35 MPH winds all one night but never felt in danger of falling trees, etc. The rates are more expensive than we're used to at other military facilities where we've stayed. Three stars, all-in-all.
Nice enough park. Stayed on the old Fort Sam Side. A few spots over on the old Lackland side appear to have lake views.