Prices (AUD or TOP per 1 May 2019)
Cave Diving (2 tanks, min 3 pax)A$ 240
T$ 410
Whale swimA$ 200
T$ 330
A$ 230
T$ 385
Whale watch onlyA$ 190
T$ 310
A$ 210
T$ 365
Outer reef diving (2 tanks, min 3 pax)A$ 200
T$ 330
A$ 240
T$ 400
Inner reef diving (2 tanks, min 3 pax)A$ 115
T$ 200
Land tour (min 3 pax)A$ 55
T$ 96
Dive gear hireA$ 30
Multiple days tours, 3 or more daysprices on request
Groups of 9 or moreprices on request


Tonga is surrounded by many beautiful reefs abundant with life. With a group of 4 buddies or family, try your hand at reef fishing and have a relaxing day out.

Reef fishing, up to 4 people
Full dayAU$ 300
Includes standard equipment rental, boat and light lunch.
All prices in Australian dollars and inclusive of Tongan sales tax.


We have boats for charter by request. For more information please email us.

We also have a BxB a short stroll from the heart of Nukuʻalofa.

whale near surface

Why dealing with us?

Here at Deep Blue we have almost 15 years of experience as an operator and over 30+ years of local knowledge of our Tongan waters.

Deep Blue started operating whale watch and swim tours in 2006 and have observed an increase in numbers of Humpbacks that we see on our two islands, ʻEua and Tongatapu every year.

A couple of factors that we believe contribute to our population numbers increasing are:

1. There are only 2-3 operators on the two Islands ʻEua and Tongatapu. 95% of tours during the season, you will not see any other boats in the water in Tongatapu. Due to this, we believe that the whales are not commonly disturbed, they are more relaxed & inviting, which results in a more intimate and special encounter.

2. Our waters in Tongatapu are shallow and calm. You can often see right to the bottom of the ocean most days of our tours. (For guests, who are nervous in water unless they can see the bottom, Tongatapu is the spot for you). Having shallow water, we believe the mother may feel it’s a safe environment for her calf to learn how to swim, for the mother to take a rest and have the calf close by which makes their behaviour typically unhurried and calm, which can result in a unforgettable experience.

Number of boats in the water:

In Tongatapu there are 3 whale operators and 2 on ʻEua. Less boats in the water, lower engine speeds and noise, creates less disturbance and threat for the whales. This is no small or easy task, given the whales are completely wild. We need to remember that we are entering their world, & their haven, especially when a mother has just given birth to a calf. Normally it is not advisable to approach any animal when their baby is small and vulnerable because they can display protective and territorial behaviours which can prove to be dangerous. Having a lower engine speed and reduced amount of noise, gives the whales a chance to be aware on where we are and decide if they want to move away or stay but it can also create a curiosity which brings the whales to us.

Given the large size of the whales, it is advisable to go with very experienced guides and crew that will be constantly observing the behaviours of the whales we see, making decisions regarding your swim and the safety of all our guests.