This was our last National Park for this Island, Pu’ukoholā Heiau National Historic Site (The Temple on the Hill of the Whale) built of what else but lava rocks. The building material of plenty on this island. Built by King Kamehameha in 1790-1791. It was told in a prophesy that if he built this temple that he would be able to unite the islands as one kingdom. He was able to unite the islands. It was at this time when James Cook from England stumbled upon the islands bringing them in one generation from the stone ages to a global awareness of nations and technology of the English sailors who frequented the island. One such sailor John Young and foreign advisor Isaac Davis stayed on the island and assisted Kamehameha in his rise to power.
I share this because you can go on line and listen to the history for yourself it is pretty interesting.
The reef here is full of reef sharks we watched for them but did not see any. Supposedly they are easy to spot in the morning their black triangular dorsal fin moving above the water.