Windswept beaches, sand dunes, blinking lighthouses and a charming pace of life await on this 50-square mile island. The world's former top whaling port is now designated a National Historic District. Leave the car and take the shuttle or bike around. Seaside cottages, old whaling captains' mansions and historic harbors contain quaint inns, boutique stores, chowder shacks and upscale dining delights. Swim, surf or load up the tackle for Nantucket's excellent striper, bluefish and bonito fishing.