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Diving at Sisters' Islands Marine Park

Big Sister’s Island

Contact approved dive operators for their prices.

About the Marine Park's dive trails


All dive trail activities are suspended until further notice due to enhancement works. Please check back for the latest updates..

Each Sisters' Islands Marine Park dive trail is approximately 100m long with 10 stations. Explore marine life and learn about conservation and responsible diving.

There are 2 trails, the Shallow trail (in yellow) and Deep trail (in red):

sisters islands marine park

This is a trail with coral reefs and sandy habitats.

Look out for:

  • Giant clams: These creatures have colourful mantles that are sensitive to light and retract when divers swim over them. They often withdraw into their shells for protection and obtain food from algae that live within them.
  • Hard corals: Did you know the shape of each hard coral is designed to fit a specific environment? Singapore is home to 250 species of hard corals, and this trail offers a chance to see Boulder Corals, Mushroom Corals, Plate or Foliacious Corals and more.
  • Sea anemones and Clownfish: These creatures have a symbiotic relationship. Look closely at the sea anemone you pass and you might just find a "Nemo".
  • Schooling fish: These are fish that swim in schools to confuse predators. Common schooling fish at the reef include the Yellowtail Fusilier and Damselfish.

This is a trail with coral rubble, rocky and silky habitats.

Look out for:

  • Sea fans: The wide side of the fans is usually oriented to face the flow of currents. They can grow to over 1m in size and are often covered with colourful feather stars.
  • Sponges: Sponges do not have the nervous, digestive or circulatory systems present in other animals. Instead, they have specialised cells that allow them to filter plankton and other particles as they maintain a flow of seawater through their bodies.
  • Sea stars: Like sea urchins and feather stars, sea stars tend to have a 5-point body symmetry. Look out for common ones such as Cushion Stars and Icon Stars on your dive.
  • Soft corals: Take a closer look at soft corals to see if you can spy symbiotic shrimps, porcelain crabs or brittlestars within their branches.
  • Nudibranches: These sea slugs have brightly coloured bodies to warn potential predators that they are poisonous. This also makes them a photographer's favourite!

Download the dive trail booklet to supplement your dive. (PDF, 3.01MB)

Diver requirements

You need to be an experienced diver with good buoyancy control to ensure that corals are not broken accidentally when diving. As such, training dives are not allowed at the Dive Trail.

You will need the following in order to dive:

  • Certification: Advanced Open Water certification (or equivalent) from reputable international training organisations. This excludes junior divers and those holding non-independent certifications.
  • Experience level: At least 20 dives logged, with one local dive completed within the past 2 years.

When you can dive

Dive windows will be made available based on currents and the conditions of the marine habitat.

To minimise damage to the reefs and prevent overcrowding, a maximum of 8 divers are allowed at each trail at any given time.

Approved dive operators

Sign up for a dive at one of the trails with any of our approved operators:


Contact details

Diving Solutions (Asia)

Leeway Sub-Aquatic Pte Ltd

Marlin Divers Pte Ltd

Cuddlefish Divers LLP

Interested dive operators may contact us at to obtain approval for conducting the guided dives.