10 years and older
4 Hours
Kewalo Basin Harbor, Oahu
Tour Times

UPDATED 2021: Description of activity subject to change without notice due to new limitations and updated capacities. Thank you.


  • Availability: Daily
  • Tour Times: 10:30 AM
  • Duration: 4 Hours

Oahu is part of the most isolated chain of islands in the world! This means that as much as 30 percent of the marine life you’ll see on our reefs cannot be found anywhere else on earth! Aside from this, our reefs are known for their variety of colorful hard corals such as lobe, cauliflower, antler, brain, and mushroom. Don’t miss the small stuff! While everyone can appreciate our massive turtles and other large pelagic animals, we stress the importance of the little guys. Our guides are known around the island for finding things other miss such as rare and colorful nudibranchs (sea slugs), frogfish, fluorescent shrimp, camouflage octopus, and more!


  • Instructor
  • Equipment
  • Snacks & Drinks


  • Swimwear
  • Towels
  • Reef Safe Sunscreen


  • Age must be 10 years and older
  • Dive is for Certified Divers (must present Certification)
  • You must be in good overall health to participate.
  • If you are pregnant, you may not take part.
  • You must have good circulation and healthy, unblocked breathing.
  • If you are taking antidepressants, or other potential contraindicated medications, you will need a medical release form signed by your doctor to take part.
  • You must be in good physical condition. If you have asthma, epilepsy, diabetes, heart disease, high blood pressure, or have suffered a stroke, you will need a medical release form signed by your doctor to take part.
  • If you have problems equalizing your ears, you should not take part.
  • Dive sites are chosen each day based on weather and water conditions, requests for specific sites will be noted.
  • All participants must complete electronic waivers prior to participation.

Location: Banzai Divers, Kewalo Basin, Pier B, Slip B-3.
Address: 1125 Ala Moana Blvd Honolulu, HI 96814
Google Maps: https://goo.gl/maps/8MQ3GxBSycRTPRiXA

Check-in: At Pier B, Slip B-3. Vessel’s name is “Kahala Kai”, white with yellow and green lettering.

Special Notes:

  • Dive sites are chosen each day based on weather and water conditions.
  • Please allow adequate travel time.

Activity Company: Banzai Divers Hawaii

Dive Sites:

TURTLE CANYONS – 15 to 30ft (5-10m)

It’s in the name! As many as two dozen green sea turtles can be seen together here. Take a knee and watch one of the busiest turtle cleaning stations on the island. Several at a time gather to have their shells cleaned by tangs, wrasses, and other fish. The turtles are used to divers, so getting a photo with one is usually easy. Don’t touch it though, these guys are protected by law.

TURTLE TOWN – 30 to 40ft (9-12m)

Turtle Town offers a reef formed on lava that flowed from Haleakala centuries ago. The caverns and ledges in the lava are a perfect habitat for sponges, corals, octopuses, fish, eels, and shrimp. The highlight of this reef is the number of Green Sea Turtles. The Green Sea Turtles are an endangered species and must not be touched or harassed. They are very curious animals and often allow snorkelers a good look from just a few feet away.

EWA REEF – 50 to 80Ft (15-25 m)

This reef dive on the Oahu’s south shore boasts beautiful lava formations and incredible overhangs. The max depth is about 80 feet. The dive depth varies and the bottom time is usually about 25 minutes. There is an abundance of fish and a 6-foot turtle sometimes makes an appearance, lots of eels, often rays show up, and the occasional white tip reef shark. Visibility here is often 100 feet or more.

HORSESHOE REEF/KEWALO PIPE – 40 to 65 ft/12 – 20m

Another south side double whammy! Horseshoe reef gets its name from its shape. Here you can find several species of eels, pincushion starfish, and antler coral. Swim 50ft/15m to Kewalo pipe. Keep your eyes peeled for spotted eagle rays off in the distance, and follow along this drainage pipe covered in coral and little critters galore.

Note: Dive sites are chosen each day based on weather and water conditions.

KEWALO PIPE – 15-60ft (5-20m)

This dive site gets its name from an old storm drain pipe that runs straight out to sea from the shore. Adjacent to Horseshoe Reef, it is a great example of the South Oahu reef structure. Bright hard corals grow along the pipe itself, as well as the reef surrounding it. Keep an eye out for frogfish! They like to use the corals on the pipe to camouflage themselves. If your air lasts, the reef at the end of the pipe is pristine! Look for large white mouth moray eels and octopus!

NAUTILUS REEF – 30 to 40ft (9-12m)

Nautilus Reef is a combination of two shallow reefs set upon old lava rock beds. It was named after the glass bottom boat Nautilus that toured the area but has since been relocated to Guam.

Lots of reef fish here including triggerfish, boxfish, goatfish, tangs. Also, sightings of manta rays, stingrays, tiger sharks, and grey reef sharks are possible at the outer edges of the reef. Monk seals have been seen here too.

RAINBOW REEF – 23 to 65Ft (7-20m)

This is a great dive site for amateurs, as it doesn’t have a current and features vast amounts of marine life. The fish here are used to human contact and as such will approach a diver. One can see spotted pufferfish, moray eels, porcupine fish, Moorish idols, fantail filefish, and triggerfish.

STARS – 25 to 60 ft (8 -18m)

Another west side must dive! Known locally as Keanu Corners, this is another great topography dive. Here you can drop through a vertical lava tube down to the bottom where you make your way to one of the most spacious caverns on the island. Everything from rare nudibranchs to the endangered Hawaiian Monk Seal can be found here.

SUPER MARIO WORLD – 35 to 45ft (10-14m)

Mario World is named because of the extensive pipe system that covers the area. This is a great spot to find Cowry shells and schools of huge pufferfish. Because of the depth, it is a great to dive site for all of our divers, from students to certified divers just looking for a nice slow-paced reef dive.

Tour Reviews

5.00 based on 5 reviews
September 2, 2017

We had a great day out diving and even got to see a few sea turtles. As soon as the guides saw our certifications they register some basic safety procedures and started talking casually about the area and the sea life we could see!

February 1, 2018

I was delighted when I found out about this tour and the chance to swim with sea turtles. I couldn’t believe how friendly these animals were and this is an experience I will never forget! The boat was very well maintained too making the experience better.

April 24, 2019

My girlfriend is a PADI certified diver, I am not. But thanks to this dive that made it possible for us to go together on the same dive. This is definitely one of the highlights of our trip!

April 24, 2019

My friends and I are all experienced divers. We thought it’s gonna be hard but the guide made it easy and we had an awesome time!

April 24, 2019

I love this tour for so many reasons. First, tour time is not so early. Second, check in location is so close to Waikiki. Third, the dive sites are full of marine life! Two thumbs up!

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