Much of the fun at Kauai’s beaches happens above water. Surfing, swimming, boogie boarding and paddleboarding are some of our favorite ways to spend a perfect Kauai beach day. But putting on a snorkel mask and fins on your feet will give you a perspective of Kauai that is completely different from the above view. Underwater, Kauai’s coral reefs are teeming with sea life; colorful fish in a rainbow...