Pohaku puna the finger coral is nature’s natural seawall and one of the most common reef building corals in the Hawaiian Islands.
Terry Lilley / Contributed
When they are small they look just like small white fingers growing upwards but as they grow large they get a more rounded shape and they can grow as large as a car then grow together to form an entire coral reef.
If you live on a sandy beach here in Hawaii then you may come to love the giant finger corals because they just may help save your house from falling into the sea someday soon! Pohaku puna the finger coral is nature’s natural seawall and one of the most common reef building corals in the Hawaiian Islands. This white to grey colored coral makes up about 80% of the reef surrounding Waikiki and the entire town of Honolulu is resting on an ancient bed of fossil pohaku that was once a massive live healthy reef years ago when the sea levels were higher.