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Thunder Hole

Thunder Hole Bar Harbor, Bar Harbor, Maine 04609 USA

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Opens Sun 8a
  • Independent
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“watch out for the splash zone!”

Nothing symbolizes the power of Acadia National Park as much asThunder Hole does.When the right size wave rolls into the naturally formed inlet, a deep thunderous sound emanates. The cause is a small cavern formed low, just beneath the surface of the water. When the wave pulls back just before lunging forward, it dips the water just below the ceiling of the cavern allowing air to enter. When the wave arrives full force, it collides with the air, forcing it out, resulting in a sound like distant thunder. Water may splash into the air as high as 40 feet with a roar!This is a beautiful spot to view some of the most striking features within Acadia. Northward is Sand Beach and the Great Head to the right. Southward is the majestic 110 foot high Otter Cliff, one of the highest headlands north of Rio de Janeiro.Thunder Hole is just past Sand Beach while traveling south on thePark Loop Road. The Island Explorer Shuttle Bus stops here about every half hour during normal seasonal daytime hours.

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Reviewed by

  • 17 Reviews
  • 12 Helpful
September 16, 2014
Rated 5.0

Wow....the tides have everything to do with whether the hole blows or not...
plan accordingly....

2 people found this review helpful

Reviewed by

  • 19 Reviews
  • 22 Helpful
July 04, 2014

Wasn't thundering when we went so a bit of an anti climax. Recommend you speak with a ranger about best times to go.

2 people found this review helpful

Reviewed by

  • 9 Reviews
  • 3 Helpful
November 15, 2014
Rated 5.0

Saw the hole without the thunder but it was a beautiful hike along the mountain coast

1 person found this review helpful

Reviewed by

  • 11 Reviews
  • 1 Helpful
September 01, 2014

Want thundering at all. However for the rest of the place is worth to visit.

1 person found this review helpful

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Thunder Hole

Thunder Hole Bar Harbor
Bar Harbor, Maine
04609 USA


Closed Now
  • Sun - Sat: 8:00 am - 9:00 pm

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  • Parking
  • Pets Allowed
  • Restrooms
  • Wifi
  • Wheelchair Accessible
  • Credit Cards Accepted
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