Waianae Harbor is a small boat harbor on the west coast of Oahu, Hawaii, offering sportfishing charters, sailing cruises, dolphin excursions, whale watching, and snorkeling tours. It features facilities including 109 berths, 7 ramps, vessel washdown, fish hoist, marine sanitation pump out, harbor office, restrooms, ice house, and convenience store. Various operators like Hawaii Nautical (family-owned ocean activities), Dolphin Excursions (dolphin and whale watching on 34-foot RIB for small groups), and others provide services such as swim with wild dolphins, snorkeling with turtles and reef fish, sunset cruises, and private charters with limited capacity for intimate experiences.

Hawaii Sail Charters is Kona's Premier Sailing Tours on the Big Island, offering private sailing charters including snorkeling adventures, wild dolphin swims, snorkel tours to Captain Cook and Kealakekua Bay, sport fishing, whale watching, and sunset sails.

Hawaii Nautical is one of Hawaii’s largest ocean-activity providers, operating for over 25 years with the state’s largest inter-island fleet of vessels serving harbors across Oahu, Maui, and the Big Island. They offer luxury private charters, snorkel cruises, sunset sails, day sails, whale watching, and scenic tours, emphasizing safety, genuine aloha, respect for marine life and ecosystems, Dolphin SMART recognition, reef conservation, and support for local communities.

Boom Boom Sportfishing offers daily 4 to 12 hour deep sea fishing charters from Waianae Boat Harbor on Oahu's West Coast, Hawaii, aboard the 50-foot luxury air-conditioned sportfisher Boom Boom II. The company emphasizes expertise in local fishing grounds including Fish Aggregation Devices (FADs) and ledges to maximize catches of species like Striped Marlin, Yellowfin Tuna, Sailfish, Black Marlin, Wahoo, Mahi Mahi, Skipjack Tuna, and Shortbill Spearfish, providing private and shared charters with experienced captains and crew.

Live Bait Sport Fishing is a family-owned fishing charter business established in 1985, located in Waiʻanae Boat Harbor on Oʻahu's west shore, Hawaiʻi. It offers full, 3/4-day, and half-day deep sea fishing charters and coastline sport fishing using live bait, lures, light to heavy tackle, and combining ancient Hawaiian traditions with modern techniques for anglers of all levels.