Callville Bay are the nations leading houseboat rental service with locations in many of the top destinations in the united states. Houseboat rentals and vacation houseboats on Lake Mead at Callville Bay. Located just 45 minutes from Las Vegas, and within an easy half day's drive from Los Angeles, San Diego, Salt Lake City and Phoenix, Callville Bay Resort & Marina isa full-service marina offering you everything that you need for a spectacular vacation.