Five full swim days in the sheltered waters of Vava'u on your choice of 4-passenger or 6-passenger boats — including the only dedicated 4-person boats in Tonga — with a USA-based team that has run these expeditions for over 18 years.
Tongan law allows only 4 swimmers and a guide in the water at a time. Most operators run 8-person boats and split you into rotations. We run two boat sizes designed around the rule — intimate 4-passenger boats and great-value 6-passenger boats — so you spend your days with whales, not waiting for your turn.
4 swimmers only — no rotations. Every drop, every encounter, you're in the water. Nobody else in Vava'u runs boats this small.
Our 6-person boats deliver 33% more in-water whale time than the 8-person boats most operators use — 4 guests in the water, only 2 resting.
A USA-based team with deep local roots, expert Tongan guides, and the best boats and accommodation in Vava'u — booked as one seamless package.
The whales decide the day. Our job is to make sure that when they show up, you're the one in the water.
Winter in Tonga runs July through the end of October, and it brings the humpback whales back to the calm, protected waters of Vava'u to mate, give birth and raise their calves — one of the only places on Earth where you can legally swim with them. Our season runs mid-July to the end of October.
They're wild animals and no one can promise an encounter. What we can tell you: on average, our guests get 3 or more exceptional whale swim days per 5-day trip — mothers with calves, singers hanging in the blue, and heat runs charging past.
No dive certification needed. If you're comfortable snorkeling, you're ready.
Get an overview of all the fun — the boats, the whales, the island life of Vava'u.
If you ever wondered what it would be like to get in the water with multi-ton humpback whales, then this is the company for you.
I would absolutely encourage you to get the four passenger trip... there was no waiting for our turn to get in the water.
My experience swimming with humpback whales in Tonga was amazing! Ali and Esau are a great team.
Leading a dive club? Shooting a documentary? Celebrating something big? We build customized private charters for group leaders, families, photographers and film crews.
Whole-boat and whole-resort bookings, flexible schedules, and a team that has supported productions in Tongan waters for years.
Plan a Private Group →Humpback Swims is part of SDL Expeditions — small-group swims with the ocean's greatest animals, around the world.
With only 4–6 guests per boat, our season typically sells out early. Pick your week in Vava'u and we'll handle the rest — boats, resort, guides and all.
