Bay of Islands

For every level of diver, snorkeler, or spearfisher

A world-class marine playground with endless dive options

The Bay of Islands is a diver’s dream — a mix of rich marine life, dramatic coastlines, and historic underwater sites. With sheltered bays, offshore islands, and abundant wildlife, it offers something for every level of diver, snorkeler, or spearfisher.

Diverse Dive Experiences

From reefs to wrecks, the Bay delivers variety in every dive:
  • Deep Water Cove, a protected marine sanctuary teeming with life
  • The HMNZS Canterbury wreck is perfect for advanced SCUBA and freedivers
  • Scenic shallow reefs are ideal for snorkelling and beginners
  • Cape Brett and offshore islands offering dramatic drop-offs and caves

Bay of Islands

From reefs to wrecks, the Bay delivers variety

Abundant Marine Life

The Bay thrives with biodiversity all year round:
  • Schools of snapper, kingfish, and trevally
  • Summer visits from manta rays and turtles
  • Playful dolphins and occasional orca encounters
  • Healthy reef systems bursting with colour and movement

Iconic Above & Below

Here are just a few examples:
  • The Bay’s 144 islands create endless coastal scenery
  • Māori and European history are embedded in every headland
  • World-famous Cape Brett and Motu Kōkako nearby
  • Easy access for divers, with short transit times from launch points

Ready to explore Bay of Islands?

Exploring Bay of Islands with us

Sea Adventures NZ

Local Knowledge

We know these waters inside out, from marine life to local history, and love sharing stories that make the journey unforgettable.

Small Groups, More Connections

No crowds, no rush. Just space to relax, enjoy, and truly take in the experience.

Comfort and Care Onboard

Step onto our modern 2024 Stabicraft, complete with hot drinks, a friendly crew, and plenty of comfort for a smooth day on the water.

Access to Extraordinary Places

From Great Barrier Island to Whangaroa Harbour, we’ll take you to stunning spots most operators don’t reach.

Safety First

With Maritime NZ certification, top navigation gear, and decades of experience, you can relax knowing you’re in safe hands.

Eco-conscious Adventures

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

Want to book a trip with us?

Have you seen our gallery yet?

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Our customers say…

Why respectful and sustainable?

With every charter, we're committed to sharing the wonders above and beneath the surface while fostering the next generation of marine stewards who understand both the importance of conservation and the principles of sustainable use that will help protect these precious waters for years to come.

Our blog articles and stories…