"More commonly known as Turtle Beach, this Oahu North Shore cove often attracts honu , aka Chelonia mydas, the largest of the hard-shelled sea turtles. These big, friendly giants can reach 400 pounds as adults and are herbivorous, feeding primarily on algae and seagrasses, abundant year-round in the warm, shallow waters. Summer's gentle surf—swells averaging just two feet—increase your odds of quality turtle time. Cross the road carefully and keep at least six feet away from the endangered turtles as they sunbathe onshore (mind any "no-go" zones maintained by volunteers). Avoid swimming here: The currents and beach rocks make it challenging."