When snorkelling in Auckland, you’ll come across a variety of colourful fish that inhabit the coastal waters. One of the most common sights is the school of blue maomao, recognised by their vibrant blue and yellow hues. These fish are often seen darting through rocky reefs and kelp forests, providing a lively splash of colour beneath the surface.
Another frequent visitor is the blue cod. These hardy fish prefer rocky outcrops and are usually seen resting on the seabed or darting away when approached. They’re a popular catch for local fishers but are equally fascinating to observe while snorkelling.
The yellow-eyed mullet is also prevalent, especially in calmer, sheltered bays. Their silvery bodies with a hint of yellow along the fins make them easy to spot. These fish tend to linger near the surface or in the shallows, especially during calmer conditions.
For those lucky enough, you might also see the black-spotted sweep, which boasts a sleek body with distinctive spots along its sides. They often swim in pairs or small groups, skimming along the seabed or hiding among rocks and seaweed.
Auckland’s waters are teeming with intriguing invertebrates and marine flora. Keep an eye out for the colourful nudibranchs, often called sea slugs. These tiny creatures come in a range of striking colours and patterns, making them a favourite among snorkellers looking for a close-up encounter with nature’s artwork.
Kelp forests are a defining feature of Auckland’s underwater environment. These towering seaweeds sway with the current and provide shelter for many marine creatures. You might see kelp gulls perched nearby or tiny fish darting in and out of the fronds.
Sea stars, or starfish, are also common and easy to spot clinging to rocks or lying on the seabed. They come in various colours, including orange, purple, and brown. Some species have arms that can regenerate if damaged, a remarkable adaptation.
Anemones and sea urchins add to the underwater mosaic. Bright anemones with their tentacles waving in the water can be found attached to rocks, while sea urchins with their spiny shells often hide beneath the kelp or among rocks, especially in crevices.
While Auckland’s waters are renowned for their fish and invertebrates, occasional sightings of larger marine creatures add an element of excitement to snorkelling excursions. Dolphins are perhaps the most sought-after animals, with the NZ dusky dolphin being a common sight during the right season. These intelligent mammals often follow boats or swim alongside snorkellers, giving an unforgettable experience.
Seals are also regularly seen basking on rocks or swimming near the shoreline. They tend to be curious and may approach snorkellers at a respectful distance. It’s important to observe them quietly and avoid disturbing their natural behaviour.
On rare occasions, snorkellers might catch a glimpse of a juvenile or adult kingfish patrolling the reefs. These sleek predators are impressive to watch, especially when they dart swiftly through schools of smaller fish.
Another extraordinary sight can be the occasional manta ray gliding gracefully beneath the surface. Though less common, their presence highlights the richness of Auckland’s marine environment. Always maintain a respectful distance when encountering such majestic creatures.
To make the most of your snorkelling experience and see as much marine life as possible, keep a few practical tips in mind. First, choose your snorkelling spots wisely—areas with rocky reefs, kelp forests, and sheltered bays tend to have higher biodiversity. Wait patiently and move slowly; sudden movements can scare away shy creatures.
Bring a waterproof camera or snorkelling mask with a built-in camera to document your encounters. Remember to avoid touching or disturbing marine animals, especially invertebrates like sea stars and anemones, as they are delicate and vital to the ecosystem.
Use a flotation device if you’re not a confident swimmer, and always snorkel with a buddy. Check the weather and sea conditions beforehand; calm, clear days offer the best chance for seeing marine life in their natural habitat.
Respect the environment by not collecting shells, rocks, or marine creatures. Instead, enjoy observing them in their natural setting. If you’re unsure about local rules or protected areas, ask at the local dive or snorkelling shops—they can offer helpful advice and guided tours for a safe and enriching experience.
Auckland’s coastal waters are a vibrant playground for snorkellers eager to explore marine life. From colourful fish like maomao and blue cod to fascinating invertebrates such as nudibranchs and sea stars, the underwater world is rich with diverse creatures. Larger animals like dolphins and seals may occasionally swim by, adding a touch of excitement to your adventure. With practical tips and respectful behaviour, you can enjoy memorable encounters and contribute to the preservation of these precious ecosystems.
Experience Auckland’s Underwater Wonderland
Ready to discover the breathtaking marine life beneath Auckland’s crystal-clear waters? Social Nature Movement offers exclusive guided snorkelling tours designed for all experience levels. Our expert guides will take you to the best spots around Auckland’s coastline, where you’ll encounter vibrant marine ecosystems and spectacular underwater landscapes.
Our snorkelling tours include:
Don’t just read about Auckland’s underwater world—experience it firsthand with guides who know every reef, bay, and marine sanctuary in the region.
From NZ$95 for guided half-day adventures
