Surfside Beach, located on the southern shore, is one of the most popular beaches on the island. It's definitely one of the most amenity-rich stretches of sand, too: Public rentals, showers, food kiosks and lifeguards are all here in the peak beach season. And although the waves may be too choppy for younger travelers, Surfside is great for catching a wave and participating in other gnarly watersports.

But popularity has a downside. Recent travelers recommend visiting in the off-season to avoid the crowds and parking challenges. 

Surfside Beach is located at the end of Surfside Road and has parking for cars and bikes. There's also Nantucket Regional Transit Authority shuttle service during the summer season. Check NRTA's website for a schedule.