Having done a catamaran trip to Lanai I was looking for something more adventurous. Ocean riders provided exactly that. If you have issues with being out on potentially rough ocean on a zodiac that bounces across the waves, extended sun exposure and peeing in the ocean then this isn't the trip for you. If you can deal with the above, you will have a great time exploring the coast of Lanai and snorkeling pristine reefs. The significant advantage that is provided by circumnavigating the island is that they can almost always find protected snorkeling sites.