5 Best Whale Swim Tours in Tongatapu & Nuku’alofa 🐳 [2025]

1. Tahi Tonga

Departing from Faua Wharf in Nuku’alofa, Tahi Tonga offers a convenient option for those seeking the opportunity to swim with the whales in Tonga. We love that their ethos is one of mutual interactions and respect with the whales; Tahi Tonga ensures each encounter is comfortable for the whales.

The morning is spent searching for swimming opportunities, followed by lunch either on a beautiful remote island or near a sheltered reef. After lunch, if time permits, there is a chance for one final interaction with the whales before heading back. The tour lasts approximately 7 hrs 30 mins and includes water, morning tea and lunch. Swim gear is provided, including a 2.5 mm wetsuit, snorkel, mask and fins.

© Kaylie Tongia

2. Deep Blue Diving

100% Tongan-owned and operated, and with over 30 years of knowledge of Tongan waters and 15 years of operating whale tours, Deep Blue Diving is a worthy go-to for your whale swimming experience! They offer seven-hour trips, usually departing in the morning, but afternoon tours are available on special request. Morning is the best time to go, departing at 7 am to experience calmer seas.

Deep Blue also offers two boats: a smaller boat ideal for small groups of swimmers and a larger 15 m (49 ft) boat – unique in Tonga’s whale-watching landscape – ideal for groups with a few watchers on board. The latter carries up to 25 passengers (not that you often share a tour with that many) with a crew-to-guest ratio of 2:1. Their larger boat also caters to the elderly and disabled while often being a more comfortable option for those more prone to seasickness – it also has an onboard toilet! The boat travels at a calm and unhurried pace, taking a slower approach than smaller boats, which are said to feel less harassing to the whales and more comfortable for passengers.

Other features of their tours include whale behaviour commentary and sometimes the opportunity to see rescued turtles released back into the wild. Lunch is a homemade cooked meal in reusable containers. Deep Blue also operates scuba diving and snorkelling tours outside of the whale season, which you can learn more about in The Best Snorkel & Scuba Dive Tours in Tongatapu.

© TongaPocketGuide.com

3. Tanoa Expeditions

For a full-day adventure with whales, join a whale swimming experience with Tanoa Expeditions. Whale watching tours with Tanoa Expeditions last the full seven hours per Tonga’s whale watching laws. With that, you’re day out on the water can be very flexible; swimming with whales in the morning if the whales are keen then enjoying lunch on a remote islet with fantastic snorkelling among the coral. Otherwise, you have all day to immerse in the best whale encounters if your group prefers. Better yet, the boat is comfortable enough to enjoy the latter, offering an inside sheltered section if things get a bit breezy, while there’s also a marine toilet on board.

Tanoa Expeditions features a few extra welcome touches, such as towels and sunscreen on board, while their all-local crew consists of a skipper, deckhand and a whale swimming guide. They have a very respectful approach to the whales, while also ensuring guests have a safe and fun time. Although Tanoa Expeditions accepts cash and credit card, operating out of the Tanoa International Dateline Hotel, note that there is a 4% credit card fee – that’s normal in Tonga, as explained in What is The Best Way to Pay in Tonga? Plus, learn more about the hotel in 20 Best Resorts & Hotels in Tongatapu.

© TongaPocketGuide.com

4. Tuna Moana (‘Uiha & Sons)

A Tongan-owned and operated tour, Tuna Moana offer full-day whale swim experiences. Their modern boat is well-designed for optimum topside whale watching right around the vessel, as well as atop the crow’s nest! The boat is also pretty low to the water, making it even easier to get in and out of the water for swimmers. There are often two/three guides on the boat at a time with a maximum of eight guests onboard. All the usual fixings are included, such as lunch. If you have a good whale swim in the morning, you can ask to stop for lunch at one of Tongatapu’s stunning islets.

Tuna Moana is also part of JeZAmi Hotel in Nuku’alofa. Learn more about staying at their popular accommodation in the 20 Best Hotels in Nuku’alofa.

© TongaPocketGuide.com

5. [UPDATE] Blue Water Retreat

[Update: Blue Water Retreat is now solely operating out of ‘Eua – see The Best Whale Swim Tours on ‘Eua to learn more].

Also known as “Whale Dive Tonga”, Blue Water Retreat operates two whale swimming vessels catering to small groups of up to nine guests. As well as day trips, Blue Water Explorer offers three-day and five-day packages to maximise your chances of having the best possible whale swim. The team prides itself on educating guests on the whales you’ll (hopefully) be seeing throughout the tour.