West Maui is where you will find most of the big resorts and with it, many tourists who prefer the amenities and services that the higher end hotels can provide. There are plenty of beautiful beaches on the west shore like Kapalua, Napli, and Ka'anapali Bay. Just remember the popular beaches fill up quickly, so get to your favorite beach early. For adventure try hiking through the Honolua Bay forest or up to the Nakalele Blowhole. DT Fleming Park is the most popular family beach with plenty of parking, picnic tables, barbecue pits, rest rooms, and a life guard station.
Make sure to visit Lahaina to shop and and enjoy some of he island's best entertainment and cuisine. Lahaina with its abundance of art galleries, restaurants, shops, and night life, has made it the most popular tourist town on the island.
West Maui has some of the best snorkeling on the island. Most beaches are well protected from the swells and have sandy bottoms making them suitable for beginners.