Ulua and Mokapu Beach are two sister beaches, separated by foliage which has grown between the two (the panoramic photo shows the two beaches when the foliage had been removed years ago). Ulua, the southern section, is the nicer of the two beaches, offering not only better swimming and good snorkeling, but is also prone to less wind than Mokapu. This is a very popular snorkel and dive location. Mokapu beach to the north connects up with Keawakapu beach, so if you're in the mood for a very pleasant and long walk on the beach (about 1.1 miles) this is a good place to start.