One-day city tours visit Long Son Pagoda, Bao Dai's Villa, the Oceanographic Institute, and the Po Cham Tower. Country tours take you to Ba Ho Waterfall and secluded Doc Let Beach far to the north, or to Thap Ba Hotspring. If you get a group together yourself, you can arrange custom trips for very little with any tourist cafe. Important note: No matter what anyone tells you, Monkey Island is not worth the trip, especially if you like animals and don't like wasting your time (you can just buy a "monkeys on bikes" postcard and be done with it).