Dive into the unique underwater world near Ko Olina, Hawaii, with personalized tours exploring historic wrecks and ancient lava tubes. Perfect for divers seeking safety and adventure on Oahu’s west coast.
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Difficulty
moderate
Duration
3–5 hours
Fitness Level
Participants should have moderate fitness; comfortable swimming skills are necessary.
Wildlife
History
The TK-XX wreck, sunk in the 1980s to create an artificial reef, offers a unique glimpse into naval history and marine habitat creation.
Conservation
Tours adhere to strict environmental guidelines to minimize diver impact on fragile coral reefs and marine ecosystems.
Dolphin Divers
Dive into the unique underwater world near Ko Olina, Hawaii, with personalized tours exploring historic wrecks and ancient lava tubes. Perfect for divers seeking safety and adventure on Oahu’s west coast.
Dolphin Divers is a dive operator based in Waianae, Hawaii, specializing in guided scuba and snorkel charters along west Oahu.
The operation offers multiple curated trips: a three-tank West Side Dive Charter visiting the wreck of the Mahi and exploring deep reefs and lava tubes; a Two Tank Wreck and Lava Tube Dive departing from Waianae Boat Harbor with a premium 6:1 diver-to-guide ratio and included equipment and Ko Olina transport; Private Snorkel or Dive Charters for half-day customized excursions including turtle and dolphin viewing, scuba, whale watching, and sunset cruises; Two Tank Night Dives on Fridays and Saturdays featuring sunset rides, reef exploration, and an evening fireworks display; and guided dives to Makaha Caverns and lava tubes suitable for beginners and experienced divers.
Trips are led by guides who prioritize safety and comfort. Several offerings specifically include top-quality equipment and transportation where noted. The three-tank charter emphasizes expert dive-site decisions based on daily conditions and offers the luxury of solitude as the only dive boat on the island's west side. Trips often feature green turtle sightings, and private charters provide flexible options for focused wildlife encounters. Dolphin Divers serves visitors staying on Oahu’s western shore seeking small-group guided exploration of west Oahu’s unique underwater landscapes.
Location
Waianae, HI
Operating from west Oahu harbors
Guide Ratio
6:1
Premium small groups for safety
West Side Access
Only boat on west side
Exclusive local dive access
Trips Offered
5 Trips
Wrecks, lava tubes, night dives
Book a Dolphin Divers trip from Waianae — guided dives, private charters, equipment, and transport options available.
Book in advance
This popular dive fills up quickly, especially during peak seasons—reserve your spot early.
Check equipment fit
Ensure wetsuits and gear fit well to maximize comfort during dives in cooler waters.
Stay hydrated
Drink plenty of water before and after dives to avoid dehydration in tropical sun.
Respect marine life
Maintain buoyancy control to avoid disturbing coral and sea creatures inside lava tubes.
Wetsuit (3–5 mm)
Protects from cooler water and coral scrapes during dives.
Underwater flashlight
Illuminates lava tubes and wreck interiors for better visibility.
Diving computer
Tracks depth and bottom time for safety on multi-tank dives.
Waterproof dive log
Helps record dive conditions and marine sightings.