Mount Desert Island stares boldly at the Atlantic, where granite cliffs and pine-scented shores shape some of Acadia National Park’s most memorable hikes. This guide walks you through coastal trails that combine rugged charm with accessible adventure, perfect for anyone ready to engage directly with Maine's wild eastern edge.

Begin with the Ocean Path, a 4.4-mile stretch running from Sand Beach to Otter Point. The path skirts granite breaks that push waves onto the shore, daring you to stop and breathe in the salty spray. The terrain is generally flat but rocky, requiring sturdy footwear. Keep an eye out for tidal pools hosting curious starfish and crabs, each tide cycle resetting the scene.

Next, the Great Head Trail offers a 1.5-mile loop around a jagged peninsula near Otter Cliffs. Here, granite outcrops act as natural balconies over the sea, where gulls perform swoops just inches overhead. The trail climbs steadily, with an elevation gain of roughly 300 feet, rewarding hikers with panoramic views of Frenchman Bay. The forest whispers behind you, pine needles crunching underfoot as the ocean calls ahead.

For a less traveled route, try the Ship Harbor Trail (3.3 miles out and back). It swings through salt marshes, tidal coves, and forested paths that curve around the island’s southern tip. The trail’s gentle elevation and soft earth make it accessible for a wide range of hikers. Watch for ospreys that hover like sentinels above hidden coves, and be ready for sudden sea breezes that push inland like a living pulse.

The Beech Cliff Trail takes the challenge up a notch. At 1.3 miles with about 400 feet gain, this steep, rocky route climbs alongside a rushing brook that calls attention with its persistent murmur. Granite slabs and exposed roots form natural steps, testing balance and determination. Once at the summit, the coast stretches wide, cliffs falling away to reveal lone islands and weaving currents.

Before setting out, remember to pack water and snacks, and dress in layers as coastal weather shifts quickly. Early mornings and late afternoons provide the best light for photos and quieter paths. Footwear with good grip is essential, especially on wet granite surfaces.

Mount Desert Island’s coastal trails are more than routes through wilderness—they are an invitation to challenge and connect. Every turn brings a new encounter, from the voices of the sea to the stance of ancient trees, all fiercely themselves and waiting for you to join the conversation.