Acadia National Park

Hike Bubbles Nubble Loop

moderate Summit BaggersPhotographersActive Families
2.6 mi Distance
1-2 hours Estimated Time
roundtrip Trail Type

What to Expect

This loop packs a ridiculous amount of variety into under three miles. You'll start on forested paths that lull you into thinking this is a casual stroll, then the trail ramps up onto steep granite slabs where you're scrambling with your hands as much as your feet. The payoff comes fast — North Bubble's summit opens up a panorama of Eagle Lake that looks like someone photoshopped the color saturation. Drop down to South Bubble to find Bubble Rock, a glacial erratic perched absurdly on the cliff edge, then continue over Conners Nubble for quieter views toward the Cranberry Isles. The carriage road section at the end feels like a victory lap on packed gravel. This is the trail you recommend to friends who want a real Acadia experience without committing to a full-day death march — enough challenge to feel earned, short enough to still make your Jordan Pond House popover reservation.
Summit BaggersPhotographersActive FamiliesFall FoliageHalf-Day Hikers

Safety Advisory

The granite slab sections become genuinely treacherous when wet — the rock turns slick as ice after rain or morning dew. If the forecast shows any moisture, wait for it to dry or wear shoes with aggressive grip. This is not a trail for smooth-soled sneakers.

The scramble sections near both Bubble summits have exposed drop-offs with no railings. Keep close control of kids and dogs near the edges, particularly around Bubble Rock where people crowd together for photos on a narrow ledge.

Trail Details

Distance 2.6 miles round-trip
Difficulty moderate
Estimated Time 1-2 hours
Trail Type roundtrip
Pets Dogs allowed (leash required)
Season Year-round
Trailhead Hike Bubbles Nubble Loop

Pro Tips

Trail Tip

Start from the Bubble Rock parking lot on Park Loop Road rather than walking up from Jordan Pond — it shaves elevation and puts you on the summits faster. The lot fills by 9:30 AM in summer, so arrive early or take the Island Explorer bus (Route 5) and skip the parking headache entirely.

Trail Tip

Tackle the loop counterclockwise (North Bubble first). The granite slabs on the north side are easier to climb up than down, and you'll finish on the mellow carriage road descent instead of white-knuckling wet rock at the end of your hike.

Trail Tip

The gap between South Bubble and Conners Nubble is where most people turn around — push through it. Conners Nubble gets a fraction of the foot traffic and offers the best unobstructed view toward the ocean and outer islands, especially in late afternoon light.

Photos

Getting There

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