Need places to park RV while taking cruises--out of TX

Just came back from a 21 day cruise. What we did since we are winter Texans and stay in Rockport we came down a month earlier than we usually do and setup the RV at our site and then drove back up to Galveston and stayed overnight at the Inn at the Waterpark for $109. This included Continental breakfast, free parking for the 21 days and free shuttle to and from the cruise terminal.