Ka Osting is a great muck dive. You can find all kinds of unusual creatures. Fire urchins, zebra crabs, dwarf lionfish, and almost guaranteed smashing mantis shrimp are some of the inhabitants of this shallow reef that turns into a sandy bottom between 12-16m. Did you know that sea stars are actually very aggressive creatures? Watch the horny sea stars race full speed in pursuit of Ka Osting’s unusual species of sea urchin.