You won't find any better island in Hawaii on which to go to the beach.
There are more than 80 beaches on Maui and 120 miles of coastline. The beaches come in sands of gold, black, green, red and pure, shimmering white. And while you're at it, grab a snorkel and mask and commune with turtles and many species of fish.
The waters of Kapalua, at the north end of Ka'anapali Beach (near Black Rock), and in Makena are ideal for snorkeling, especially early in the morning. Many hotels rent snorkel gear, or you can rent it from one of the many dive shops around the island.
Four Maui beaches are retired "winners" in Dr. Stephen P. Leatherman aka "Dr. Beach's" annual survey of the Best Beaches in America: DT Fleming Beach Park (2006), Ka'anapali Beach (2003), Wailea Beach (1999) and Kapalua Bay Beach (1991).
Try the ancient sport of kings. "Hot-dawg" surfers can test themselves at Slaughterhouse, Ho‘okipa and Sand Box. Novices can rent boards and sign up for surfing lessons at the hotels, where expert instructors get them up and riding the rollers from the first time out.