 The road traverses the eastern side of Mount Desert Island in a one-way, clockwise direction from Bar Harbor to Seal Harbor, passing features such as the Tarn (a pond), Champlain Mountain (location of a popular, exposed cliffside trail named Precipice), the Beehive (another, smaller mountain), Sand Beach (a saltwater swimming area), Gorham Mountain, Thunder Hole (a crevasse into which waves crash loudly), Otter Cliff, Otter Cove, Seal Harbor, Jordan Pond, Pemetic Mountain, the Bubbles, Bubble Rock, Bubble Pond, Eagle Lake, and the side road to the summit of Cadillac Mountain.Some of the island's west side features include Echo Lake and beach (a designated freshwater swimming area), Acadia Mountain, Beech Mountain, Long Pond, and Seal Cove Pond.Bass Harbor Head Light is situated atop a cliff on the southernmost tip of the west side of the island.