Extended Horizons dives the Lana’i coastline in small groups of 4 or less. No other dive shop has such amazingly low ratios of dive guide to diver. Lanai is famous for it’s Cathedral Dives, swim-throughs, archways, and lava structures. We dive both First and Second Cathedral on a regular basis. Many divers agree that Lanai diving has the greatest diversity and marine life density, to rival all other diving locations in Hawaii. Our tour is guided by certified Naturalists and marine biologists. We go SLOW so you see more. This is a two tank boat trip. We do two dives, at two locations. There are over 40 dives sites to choose from, ranging from beautiful coral reefs, to unique lava tubes, making these dives the best of your vacation! Between dives we have a warm lunch catered by Chef Marcos from Hungry Coyote. Homemade meals to keep you satisfied.