Bar Island Trail

Bar Island Trail is a 1.9-mile round trip from Bridge Street in Bar Harbor, across a gravel-and-sand bar to a forested island summit and back. Most people take 45 to 90 minutes. The catch is the tide: the bar is exposed for about 1½ hours on either side of low tide and covered outside that window. Check the same-day Bar Harbor tide table before you leave town, and plan the return before the water comes back. Miss the safe crossing and you may wait about nine hours for the next one.

Walk down Bridge Street and cross the exposed bar, roughly half a mile of rock, gravel and sand. Low water leaves pools along the flats; they’re a reason to slow down, but keep the crossing itself in view. On the island, the route climbs gradually through woods on an old road before narrowing to a forest path. This is a short outing, but the loose crossing and the fixed tide window make timing more important than the climb.

The park’s written directions describe a short right-hand spur to an old homesite with a view back toward Bar Harbor. Return to the junction, then take the left-hand continuation toward the island’s highest point for views across Bar Harbor and Frenchman Bay. The mapped line follows those directions, including the homesite spur out and back, then ends at the high point; the return down the main path and across the bar uses the same corridor.

The available trail data doesn’t name the homesite spur or mark the summit. Its exact branch is inferred from the park’s right-spur, return, then left-to-high-point directions and the connected paths on the island. Use those written directions to pick out the junction; don’t treat the digital line as proof that the old homesite itself is precisely pinned. The full 1.9-mile figure describes the round trip, while the stored map draws the shared corridor once.

The low-tide bar is the feature that gave Bar Harbor its name. The walk makes that geography tangible: downtown is just behind you, the island sits beyond a strip of exposed seabed, and the trees close in once you reach shore. At the high point, frame the bar and town below if you want a photo that shows how the island connects to the mainland.

Park in downtown Bar Harbor along West Street and walk to Bridge Street; parking there is paid from May 15 through October 31. Don’t park on Bridge Street or on the bar. The Island Explorer serves downtown. An Acadia entrance pass is required year-round, though this walk has no separate activity fee or reservation. Sand, gravel, rocks and roots make the route uneven and not accessible. Dogs are allowed on leashes no longer than six feet.