Book now for 25-35 percent off many models of houseboat rentals from the Lake Powell Marina for your next summer vacation.  Choose from 46-75 foot boats that sleep up to 20 with pick-up on either the Utah or Arizona side of the lake.  This promotion is available for travel between June 19 and September 5.  Rates range from $2,899-$10,125 (plus taxes, fuel and fees) with a seven night minimum required. Travel before June 18 and get up to 50 percent off! Houseboating allows you to explore beautiful canyons, rock formations and grottos while also enjoying great fishing and watersports. Lake Powell starts in northern Arizona and extends into southern Utah and is part of the Colorado River in the Glen Canyon National Recreation Area. The lake is 186 miles long and has almost 2,000 miles of shoreline – longer than the entire west coast of the US!