This paddle through blue, clear water is great for turtle watching. Put in at Lanikai Beach. You'll need to carry your kayak down one of its access paths. Go ashore at a sandy beach at Moku Nui, the northern of the twin islands. Once on ground, hike on a designated trail to Shark's Cove. Here you can snorkel and make a 25 ft cliff dive. The island is rocky so bring shoes to hike in. Paddle past the southern island on your way back to shore. Watch wind advisories and plan your trip on a calm day.