On the Ross Barnett Reservoir sits the Main Harbor Marina, and subsequently, the full-service Main Harbor Store. There, the staff dispenses a host of boating aids, ranging from ethanol-free fuel to ice, food, and supplies, such as life jackets or inflatable marinas for boating vacations on the go. But the store doesn't merely indulge its customers in boating merchandise. It also rents out party-boat behemoths, such as pontoons fit for a dozen people looking to relax in the sun and dip their faces into the marina's waters. And in addition to personal watercraft, or small jets fit for three passengers, there's also the massive, 30-foot party barge, which holds up to 16 people and features two levels of above-water decks, as well as a slide.