Today we talked with Chuck Blay, a well-known Hawaiian geologist who has written books on both the Big Island and Kauai. Chuck gave us an overview of the geology of Kauai, and we specifically looked at the Makauwahi Cave (where a scene of Pirates of the Caribbean was shot). At the cave, he explained how the limestone formed and how the formation can tell us about past sea levels in the area. We then went to the beach near the cave where we looked at lithified sand dunes. Overall, today was just another great day on Kauai!