

Whether it’s a group of friends, a family celebration, a research team, or a special event, Oceandiversity Sea Adventures makes your time on the water seamless, safe, and extraordinary.
Our group charters are more than just a trip; they’re shared experiences designed to bring people closer to the ocean and to each other.




Every reef, every island, every current has a story, and we love sharing them with you. From fascinating marine life insights to local history and hands-on conservation knowledge, your group will leave inspired and connected.

Forget crowded boats and cookie-cutter tours. With deliberately small groups, everyone gets space, personalised attention, and the freedom to truly immerse themselves in the adventure.

Our purpose-built 2024 Stabicraft is safe, modern, and designed for comfort. Add our warm Kiwi hospitality, hot drinks, and friendly crew, and you’ve got the perfect setting for a smooth, stress-free day.

Our operational range stretches from Great Barrier Island to Whangaroa Harbour — places of dramatic drop-offs, vibrant reefs, and untouched coastlines most operators won’t take you.

Adventure is only fun when you feel safe. That’s why we run with Maritime certified operations, top navigation gear, and decades of skipper experience. You’re in safe hands from start to finish.

Every charter is run with the environment in mind, because protecting the ocean we love is non-negotiable.




While spearfishing is not permitted inside the reserve, nearby waters offer prime hunting grounds with schools of Snapper and Kingfish patrolling dramatic drop-offs. Perfect for advanced spearos who want a mix of breathtaking freediving and serious fish encounters.

Iconic, rugged, and teeming with marine life. These waters offer a mix of pelagic opportunities and reef species in stunning settings. A go-to site when southerly winds make other areas less accessible.

Remote, pristine, and full of life — the Mokes are a spearfishing paradise. Expect world-class visibility, abundant pelagics, and the chance to target Kingfish and Snapper in unpressured waters.

With depths ranging from 5m to 25m, the Great Barrier suits spearos of all levels. Hunt Snapper, Blue Mao Mao, and Butterfish around kelp forests, or chase Kingfish along dramatic walls. Crayfish often lurk in cracks and caves for those with sharp eyes.

A favourite for both beginner and intermediate spearos. Shallow reefs and sheltered spots provide safe hunting grounds, while deeper walls challenge advanced divers. Expect Snapper, Trevally, and seasonal Crayfish.

A diver’s playground with wrecks, reefs, and sanctuaries, from the HMNZS Canterbury to marine-rich Deep Water Cove.
Had an amazing time out with Blair. He really knows his spots and put us all on to kings! Was an amazing day and easily the best dive I’ve had for the whole of 2017!
Great boat for getting (quickly) to Great Barrier and the Mokohinaus. Last trip we came up from Wellington stayed locally and Blair really looked after us, including weights.
As a beginner at spearfishing I took my first ever boat trip out with blair an was a epic day.. Blair has great knowledge on selecting spots an also helping with tips and hunting techniques. A very comfortable boat even with a full charter.. Blair runs a awesome friendly trip an do recommend to spearos of any experience always a memorable day.
Ocean diversity is a fantastic spearfishing charter! I really enjoyed the couple of times Blair took us out, he is an awesome guide and really knows his stuff. Blair took us to some great spots, and knew when the fish was "on"! We came home with a great haul and even scored a crayfish on our first trip out! Would highly recommend this charter with the pleasure of having a friendly, knowledgeable skipper.
Blair runs a great charter, and knows the spots, times and tides to pick up great fish. Can't wait to get back out with Oceandiversity.
Recently we took a morning boating trip with OceanDIVEsity, departing Marsden Cove, out to the Hen and Chicken Islands off the coast of Bream Bay. We had a great morning. Only six people on board plus Blair and he took us to some really superb places to snorkel.
