Bar Island Trail

This is one of Acadia’s most unusual walks: a short, easy out-and-back that starts right from downtown Bar Harbor at the end of Bridge Street and crosses a tidal land bridge to Bar Island. At low tide, a gravel-and-rock bar emerges, letting you stroll across the exposed ocean floor, then continue on a gentle forest path to the island’s modest high point. The full outing is about 1.8–1.9 miles total, and most people spend 45–60 minutes, longer if you linger with the tidepools.

What you’ll see: the crossing itself is the star—watch for tidepool critters like crabs, snails, shrimp, and the occasional sea star, plus seabirds cruising the bay. On the island, the route follows an old dirt road with a gradual ~160-foot climb to a viewpoint over Bar Harbor and Frenchman Bay. There’s also a short spur to the remnants of an old home site if you like a touch of history.

Read this before you go: timing is everything. The bar is typically passable for roughly a three-hour window centered on low tide (about 1.5 hours before and 1.5 hours after). Miss that window and you’re waiting up to nine hours for the next low tide—or paying for a water taxi. Plan your round-trip within the same low-tide window. The surface is uneven and rocky in spots, so wear sturdy shoes.

Logistics: there’s no dedicated trailhead parking—use paid municipal parking in Bar Harbor and walk to Bridge Street. Do not drive or park on the sandbar or Bridge Street. Expect crowds right around low tide, especially in summer; go at the earliest low tide of the day or shoulder seasons for a quieter crossing.

Best time to hike: it’s accessible year-round, but late spring through early fall offer the easiest conditions. Aim for low tide, and if photos are your thing, an evening low tide can pair nice light with reflections as the bar appears or recedes.

Bottom line: it’s an easy, family-friendly, one-of-a-kind Acadia experience—more seaside stroll than wilderness hike. If you crave solitude or big mountain views, pick another trail; if you want something memorable and uniquely Bar Harbor, this is it.