Being an island, it's little surprise that some of the best things to do on Maui take place on or under the ocean. As wonderful as Maui's beaches are, no trip to Maui is complete without experiencing all the the sea has to offer.
Sheltered by Lana‘i and Moloka‘i, the breezy offshore waters of Maui are ideal for sailing. Try a sailboat charter, a speedy catamaran, a Hawaiian sailing canoe, a sailfish or a sunset cruise. Family-run picnic excursions cross the channel regularly to Lana‘i and can get you back in time for sunset at your Maui hotel.
Maui has some of the finest dive spots in Hawaii, with dozens of reputable operators. There are two marine conservation areas, one at Honolua Bay on West Maui and the other at Molokini, a partially submerged volcanic crater offshore at Wailea. The contours of the crater turn it into an aquarium without walls. Certification is available in PADI, NAUI or NASDS. Boats at Ka'anapali, Lahaina and Ma'alaea offer a number of dive and snorkel excursions.
The nearby award-winning Lana‘i Cathedrals at Lana‘i is considered to be one of the most beautiful dive sites in the world, and there is also a sunken US submarine to explore.
Glass bottom boats and a pleasure submarine (Atlantis Adventures) open up the wonders to non-swimmers.
Check out our Guide to Maui Ocean Activities.