Kusu Island is home to hard corals that grow in high density on the intertidal shore. They are exposed only at good low spring tides which usually happen at predawn hours.
Plate montipora corals (Montipora sp.) are growing so well at Kusu that you can't believe this shot was taken from Singapore. There is hardly any space to even navigate among the corals.
Acropora corals (Acropora sp.) and Kusu is quite pristine to have them.
Magnificent anemones (Heteractis magnifica). I saw a False clown anemonefish (Amphiprion ocellaris) on one of them.
Red-tipped flatworm (Pseudoceros bifurcus) was found over the pink ascidian. We suspect this flatworm feeds on this type of ascidian.
Blue coral (Heliopora coerulea).
Haddon's carpet anemones (Stichodactyla haddoni) are losing its zooxanthellae or symbiotic algae.
More photos of the trip can be found here: https://www.flickr.com/photos/koksheng/shares/8222oR