Read more: 15 Most Breathtaking Destinations To Swim With Turtles, According To Travelers For the ultimate Maui snorkeling adventure, head out on the Four Winds Molokini Snorkeling Tour with Viator.

On a tour, visitors can explore the underwater area by snorkel ... is required to reach the Molokini Crater. Some of the top-rated boat tour companies include Four Winds, Redline Rafting and ...