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Lembeh Strait offers the best muck diving on earth! For divers interested in the weird and wonderful, the Lembeh Strait is the jewel in the Asian crown.

Attracting marine experts from around the world, Lembeh Strait is home to a huge array of rare and unusual marine life with new species often being discovered. With over 180 species of fish already listed in just one small area in the bay, this is the world’s finest diving destination for anyone with a serious interest in marine creatures and critters.

There are over 50 dive sites to discover within the Strait which is easily accessible throughout the year. Although black volcanic sand sites dominate the topography, there are patch reefs, sand and rubble sites and even a couple of wrecks, all of which are home to an incredible wealth of marine life. Conditions in the Strait are generally calm with clear visibility and little current offering exceptional and unique diving opportunities for all.

The unusual, weird and wonderful marine life ‘commonly’ found here include numerous species of seahorse, nudibranch, shrimp and crabs, octopus, eels, frogfish, pipefish, cuttlefish, scorpionfish and  mandarin fish. It’s a photographer’s paradise and a must visit for any diver.

Average water temperature is 27C with July and August being a little cooler coinciding with reproductive cycles of the critters hence when the greatest numbers can be seen. The best months to visit based on visibility are October to December. January and February see more rain and less visibility than others.

This stunning location attracts marine biologists, photographers, authors and muck diving enthusiasts from all over the world time and time again.

View suggested itineraries

Key info

  • Ideal for viewing: pygmy seahorse, giant frogfish, mimic octopus, flamboyant cuttlefish, coconut octopus

Dive trips

This dive location is featured in the following itineraries:

Walls, Schools & Critters

Bunaken Marine Park and Lembeh Strait together offer a fantastic variety of enchanting dive sites right in the heart of the best marine biodiversity in the world – a fabulous combination!

  • When to go: Jan-Dec
  • Duration inc. flights: 17 days
  • Price inc. flights: From £2,995 pp
  • Trip type: Tailor-made trip idea

Learn to Dive Indonesia

Learn to dive in the warm, clear waters of Indonesia and you'll be amazed by the biodiversity of marine life and relaxed, friendly way of life. Sulawesi, in particular, offers a spectacular underwater world for new divers.

  • When to go: May-Nov
  • Duration inc. flights: 10 days
  • Price inc. flights: From £2,095 pp
  • Trip type: Tailor-made trip idea
Suggested accommodation options are shown below. Please contact us for further recommendations.

Hairball Resort

Located in Kasawari Bay, this intimate dive resort offers panoramic views of Lembeh Island and easy access to the muck dive sites of Lembeh Strait, two of which form part of the house reef.

Eco Divers Resort Lembeh

Eco Divers is the only operator in Lembeh to offer you all the comfort of a resort combined with the convenience of a liveaboard. A great choice for divers wanting to get the best out of Lembeh Strait's macro heaven.

Kungkungan Bay Resort

Located on the sunrise side of the peninsula, this intimate resort, known as KBR, lies in the heart of the Lembeh Strait, home of muck diving. It has its own house reef and access to 50 dive sites within a short boat ride.

Our suggested liveaboard is shown below. Please contact us for further recommendations.


The luxurious Tambora has been engineered for a minimum of noise and vibration and aims to take you on an exhilarating journey through the Indonesian archipelago, unique in diversity and home to the world’s best dive sites.