Hosted on the three-level William D. Evans sternwheeler boat, party-goers can enjoy margaritas and drinks specials, two live DJs, a lighted dance floor, and stunning views of Mission Bay. Boarding begins at 9:00 p.m. at the Bahia Resort Hotel and the cruise ends at 12:30 a.m. Guests must be 21 years old with a valid ID to attend.