If your dog loves the beach as much as you do, then Nantucket Beaches are the ideal destination. Your four-legged friend is even welcome on all the shuttle buses (but not on the seats)! Leashed dogs are welcome on a large number of the island's beaches on both the calm north shore and wilder south and east shores. During high season (Apr. 1 - Aug. 31), dogs are only permitted before 9:00 a.m. and after 5:00 p.m. on all designated lifeguard areas. Dogs (and their owners) are never permitted within dune vegetation, protected wildlife areas, marsh grass or other fenced-off areas.