Snorkelers headed to the Honolua Marine Conservation District for some excellent fish viewing also get a short (quarter-mile) tropical hike as part of the adventure. A stream crossing midway on this walk through banyans and dripping vines can be a problem during rainy conditions—but then you wouldn't want to snorkel on these days anyway.
Honolua Bay sits besides Mokuleia Bay on Maui's north shore, part of a marine preserve that leaves the developed resort coast far away without having to drive far. You can check out the snorkeling conditions from Lipoa Point, which is just past the bays, and also one of the best spots in Hawaii to view surfers when the conditions are right. From this vantage point, you can see if stream water intrusion as clouded the waters of the bay. If it's sunny and clear, Honolua gets a big thumb's up for snorkeling, although don't expect to find much of a beach on a rocky shoreline. See Maui Trailblazer pages 72-74.