The JBSA Recreation Park at Canyon Lake offers reservations for lodging units, RV spaces and pavilions. Reservations can be made 6 months in advance by active duty personnel, all other DOD cardholders may reserve 3 months in advance.
There is an office on each side of Canyon Lake. Sunny Side has 9 full hook up reserve RV spaces and Hancock Cove has 15 full hook up reserve RV spaces and 10 electrical only spaces (first come first serve).
If it's storage you are looking for the prices are $40 monthly, $30 for Active Duty. There is about a year long wait list for these.
Daily rate: $25/night
Weekly rate: $120/week
Monthly rate: $440/month
Daily rate: $18/night
Weekly rate: $110/week
Monthly rate: $420/month