Dolphins leap and spin, penguins frolic, and a killer whale performs impressive tricks at this marine-life attraction 15 mi from Waikiki at scenic Makapu'u Point. In addition to a 300,000-gallon Hawaiian reef aquarium, you'll find the Pacific Whaling Museum, the Hawaiian Monk Seal Care Center, and a breeding sanctuary for Hawai'i's endangered Honu sea turtle. There are several interactive activities such as a stingray encounter, an underwater photo safari, and a "Splash University" dolphin-training session. Inquire about the park's behind-the-scenes tour for a glimpse of dolphin-training areas and the seabird rehabilitation center. COST: $24.