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Acadia National Park

Hancock County, Maine · United States

What have people found?

Christmas anemone, shag-rug nudibranch and bread-crumb sponge turn up here more than at our other tide pools. Silver spotted anemone, european green crab and tortoiseshell limpet are the usual finds. ~15 distinct species have been recorded here. More has been recorded at Bar Harbor, 13.7 miles away.

What is the best time to visit today?

Download the app to see the 7-day schedule.

Predicted tide from Mackerel Cove, Swans Island, 10.4 miles away.

See low tide times at Acadia National Park for the next three days
  1. Sun, Nov 158:20 AM2.5 ftin the dark9:00 PM1.3 ft
  2. Mon, Nov 169:11 AM2.6 ftin the dark9:48 PM1.5 ft
  3. Tue, Nov 1710:06 AM2.6 ftin the dark10:39 PM1.5 ft

Every low tide each day, in local time at the shore.

Plan the week in Intertidal
  • A tide chart for every day, with the best window marked
  • Identify what you find from a photo
  • An alert when a good daylight low is coming

When do people visit?

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Most observations come from June and August.

What should you know before visiting?

Arrive 45 minutes to an hour before low tide and leave as it turns. The water comes back faster than it left.
Grippy shoes beat sandals. Wet rock and algae are more slippery than they look. Tide pool safety
A tide pool is a fragile place. Look and photograph, take nothing. The tidepooling code

What lives at Acadia National Park?

Species records from iNaturalist

Silver Spotted AnemoneAulactinia stella
European Green CrabCarcinus maenas
Tortoiseshell LimpetTestudinalia testudinalis
barnacle-eating doridOnchidoris bilamellata
Atlantic DogwhelkNucella lapillus
Common Sea StarAsterias rubens
Bread-crumb SpongeHalichondria panicea
Common PeriwinkleLittorina littorea
Northern Acorn BarnacleSemibalanus balanoides
Northern Horse MusselModiolus modiolus
Jonah CrabCancer borealis
Arctic Green Sea UrchinStrongylocentrotus droebachiensis
Baltic IsopodIdotea balthica
Christmas AnemoneUrticina crassicornis
Shag-rug NudibranchAeolidia papillosa
Scan this tide pool on your next visit.

Every organism named, every visit logged to your journal.