ʻAuʻau Channel is a sheltered stretch of ocean between Maui and Lānaʻi in Hawaii, celebrated for humpback whales, clear waters, and exceptional snorkeling.
ʻAuʻau Channel has long held significance in Hawaiian culture, serving as a navigational corridor for voyagers traveling between Maui, Lānaʻi, and Molokaʻi. Its name reflects this heritage, and the channel remains a living waterway shaped by both natural forces and human history.
The channel is federally protected as part of the Hawaiian Islands Humpback Whale National Marine Sanctuary, making it one of the most important humpback whale habitats in the world. Visitors on whale-watching tours frequently witness breaching, tail-slapping, and the haunting underwater songs of male humpbacks during the winter season.
Beyond whales, the channel supports sea turtles, manta rays, spinner dolphins, and vibrant coral communities. Snorkeling and scuba diving trips departing from Maui's Maalaea or Lahaina harbors regularly cross these waters, offering access to offshore reefs teeming with tropical fish.
The surrounding views are equally compelling, with the West Maui Mountains and the ridgelines of Lānaʻi framing the horizon on clear days. ʻAuʻau Channel rewards any visitor who takes to the water with an encounter that feels genuinely wild and unhurried.
Visit between December and April for the best chance of seeing humpback whales breaching and singing in ʻAuʻau Channel.
Bring polarized sunglasses to reduce surface glare and spot marine life more easily from a boat or kayak.
Book a morning departure for snorkeling or diving trips, as winds tend to pick up in the afternoon and can chop the surface.
Look below the waterline for spinner dolphins, which frequently travel through the channel in playful pods.
Pack reef-safe sunscreen, as Hawaii state law prohibits sunscreens containing oxybenzone and octinoxate in its waters.
Paddle to a private reef, then snorkel with safety-certified guides
Sail from Mā'alaea Harbor and watch for humpback whales
Spot humpback whales on a 2-hour morning cruise from Lahaina Harbor
Sail Maui’s coastline, snorkel Coral Gardens, and enjoy lunch onboard
Sail Lahaina’s sunset with food, drinks, and space to relax
Sail Lahaina’s sunset with appetizers and an open bar
Dive Lana’i Cathedrals on a private 2-tank charter for up to six