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Enjoy close encounters with Tonga's curious and captivating humpback whales on a 10 day adventure on the Nai'a liveaboard.

Join marine naturalists and film makers aboard Nai’a, for close encounters with Tonga’s curious and captivating humpback whales, as well as dives on remote and pristine coral atolls and reefs.

Your voyage begins in Tonga's capital, Nuku'alofa, and extends north into the coral atoll wilderness of the Ha'apai Group, where the greatest number of humpback whale pods are found - but almost no other boats, save the fishing canoes of villagers. 

Sailing throughout this maze of islands and reefs, the location and activity of the whales largely determines the precise course of each new day. Mornings are generally the best time for whale spotting, observing and photographing, as well as swimming encounters, then later in the day a suitable anchorage is found, for at least one or sometimes more dives per day. Night dives are also a spectacular option on coral reefs.

From the sight of the first breach at dawn, to the silhouette of whales resting at sundown, this expedition is a unique experience in a particularly picturesque part of the world. 

These trips are hugely popular and space is very limited. Book early to avoid disappointment!

Key info

  • Departures: Please contact us for departure date details.
Featured location:


More developed than its neighbours, the island of Tongatapu still maintains an unhurried and peaceful lifestyle. More of a transit town, a short time can be spent exploring the island’s historical sites, blow holes and the limestone caves of Anahulu.

  • Ideal for viewing:
  • Excellent for: Liveaboard diving, Whales
This itinerary is available on the liveaboard shown below. Please contact us for further recommendations.


This luxurious yacht offers divers 7 and 10 night world-class diving adventures in the central region of Fiji (Lomaiviti, Namena and Bligh Water) throughout the year. Expect vibrant corals, shark encounters and plenty more.