Other incredible dive spots include Manta Sandy, between Mansuar and Arborek islands, where masses of huge manta rays, some with wingspans over 5m, wait above large coral heads to be cleaned by small wrasses. The Sardine Reef, 4km northeast of Kri, slopes down to 33m, and is home to so many fish that it can get quite dark! The fish-and-coral combination here has made it popular among underwater photographers.