A Tropical Island Gaining Global Attention

Mauritius, long known for its turquoise lagoons and pristine beaches, is now making waves in the diving world for an entirely different reason — macro life. This Indian Ocean island is quietly transforming into a must-visit destination for underwater photographers, especially those passionate about sea slugs and nudibranchs. With new species regularly discovered and rare gems like the iconic Costasiella specie (Shaun the Sheep) found in local waters, Mauritius is becoming a true macro hotspot.

Why Mauritius is a Nudibranch Heaven?

1. Increasing Biodiversity

Marine biologists and local divers are documenting more and more macro species around Mauritius each year. From rare nudibranchs to colorful shrimp, seahorses, and bizarre mollusks, the island’s reef structures and sandy muck zones are proving rich in life.

2. Home to the Famous “Shaun the Sheep” Slug

Among all the nudibranchs, one has captured the hearts of photographers around the world: Costasiella sp. Nicknamed “Shaun the Sheep” for its adorable face and leaf-like body, this tiny green wonder is one of the most searched sea slugs globally — and it’s official — the world’s cutest sea slug has arrived in Mauritius!  The beloved Costasiella has just been discovered on our shores. Long admired by nudibranch lovers and macro photographers worldwide, this tiny sacoglossan was never previously recorded in Mauritius. Its presence opens up thrilling new possibilities for research, observation, and underwater photography — proving once again that our reefs still hold wonderful surprises. Get your cameras ready — this is one celebrity you don’t want to miss!

3. Perfect Conditions for Macro Photography

The sheltered lagoons, volcanic substrate, and seagrass beds around Mauritius offer ideal habitats for critters and ideal conditions for photography — calm waters, good visibility, and easy access. Shore dives, slow drift dives, and dedicated muck dives are now more available through experienced local dive shops.

4. Growing Macro Diving Culture

Mauritius is attracting more macro photographers and divers looking for off-the-beaten-path biodiversity. Dive centers are adapting by offering guided critter dives, spotter services, and photography-friendly schedules, further boosting the island’s reputation as a macro destination.

The New Macro Frontier in the Indian Ocean

If you're a diver or underwater photographer passionate about macro life and nudibranchs, Mauritius deserves a top spot on your bucket list. With its unique biodiversity, sightings of globally adored species like Costasiella, and an increasingly vibrant macro diving scene, the island is earning its place among the world's top macro destinations. Whether you're looking to capture the next rare species or simply marvel at tiny underwater marvels, Mauritius is the place to dive in deep.