Thekona coast of hawaii is considered the primary place in the world to view manta rays during a 2 hour snorkeling tour with a knowledgeable guide watchthese gentle creatures feed onplentiful planktonattracted by underwater lights with wingspans that can reach more than20 feet 6 meters across manta rays have no teeth or barb on the tail a wetsuit and light refreshments are provided during eithersunset or moonlight option