Coral Rebirth on Satumu reef

Date April 23, 2018

Early this month, Hantu-blog contributor Chay Hoon was fortunate enough to witness and capture a rare event within the Singapore marine ecosystem – mass coral spawning. This mass reproductive event occurs once a year and is difficult to precisely predict. Marine biologists in Singapore have been observing local reefs for over a decade to narrow down the event to the span of a few days. Thanks to years of tenaciously pursuing their curiosity, we get to get a glimpse of this amazing event through Chay Hoon’s photos.

A coral on the Hantu reef releasing its eggs into the water.

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Fabulous cuttlefish and flying dragons

Date April 13, 2018

By Aidan Mock – Last month, regular Hantu blog diver, Toh Chay Hoon, took another trip to the Hantu reefs and photographed a fascinating array of creatures. In this article, we share some of the beautiful things she saw on the reef! (Photos courtesy of Chay Hoon)

A cuttlefish with its mandibles (beak) visible, perhaps it was thinking of taking a bite?

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Nudibranchs – What on earth are they?

Date March 14, 2018

By Aidan Mock: As a diver, I have long wondered what exactly nudibranchs are. They are one of the more commonly sighted creatures on the Hantu reefs and come in an amazing array of colours, shapes, and sizes, but I’ve never really see them doing anything. I decided to spend some time investigating these creatures and share about them here. (Below: Dermatobranchus sp. spotted in Hantu on January 2018. Photo credit: Toh Chay Hoon)

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Swimmer Crabs

Date February 12, 2018

Red swimming crabs are a common sighting on many of Singapore’s shores, especially near reefs and coral rubble. They are especially active at night, are extremely fast in the water, and can be quite fierce! Don’t attempt to handle them! They give a good pinch! Read the rest of this entry »

Diving with (once) extinct animals

Date January 25, 2018

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Debby Ng: Joined NParks and Friends of Sisters Island Marine Park for the first BioBlitz of this year’s International Year of the Reef! There will be more BioBlitzes coming up soon, at islands and reefs all over Singapore, so stay tuned to see what we discover! Above: Nudibranch, Phyllodesmium serratum. All photographs © Toh Chay Hoon, 2018 Read the rest of this entry »

What’s Hidden In Singapore’s Urban Reefs?

Date January 15, 2018

Did you know that Singapore waters is home to over 200 species of hard coral, more than 400 species of fish – including seahorses (yes, sometimes people forget it’s a fish!), at least 250 species of sponges, and more than 50 species of hermit crabs?! Read the rest of this entry »

Malaysia’s Largest Seagrass Bed

Date January 1, 2018


By Lim Lay Beng: The Johor Strait is widely known for its major shipping lines and the largest business port in Malaysia. Less known to public are the diverse marine habitats and the wonderful marine biodiversity in the surrounding waters. I made a day trip to Mukim Tanjung Kupang in Johor to discover this beautiful landscape with the passionate volunteers of Kelab Alami and Cicada Tree Eco-Place! Read the rest of this entry »

Diving with sea turtles

Date December 28, 2017

Did you know that there are sea turtles that call Singapore reefs home? They can be spotted feeding on our reefs in the day, or sleeping in a crevice during the night. They can hold their breath for up to 7 hours while resting or sleeping! Read the rest of this entry »

Thank you, from a living reef.

Date December 23, 2017

Nudibranch : (Tenellia) Trinchesia sibogae
Did you visit Pulau Hantu this year? If you did, THANK YOU! Your love, adoration, curiosity, and most of all, your VOICE is what gives Pulau Hantu the life and recognition she needs to remain a part of our national heritage. Above: Nudibranch, Trinchesia sibogae Read the rest of this entry »

Singapore’s under-rated reefs

Date November 5, 2017

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By Debby Ng: I don’t get to dive Singapore waters as often as I used to since I returned to university to work on a degree (one more year left!). However, I’ve not had to lose touch with our reefs because of the troves of photographers that enthusiastically visit our reefs every weekend. I rely on their images to continue to discover our reefs, and they have really taken me on a journey. Each time I receive photographs from divers, I sit at my desktop, big smile on my face, eyes wide open, thrilled to share their discoveries. Sometimes, in the quiet of my room, I let out a big “WoOoW!” almost teary eyed, completely blown away by their discoveries. (Above: Doto greenamyeri, 2017 © Gina Tan)  Read the rest of this entry »