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Crab Rocks

Tillamook County, Oregon · United States

What have people found?

Winged kelp, rockweed isopod and thatched barnacle turn up here more than at our other rock pools. Purple shore crab, giant green anemone and ochre sea star are the usual finds. ~54 distinct species have been recorded here, across at least 2 years of observations.

What is the best time to visit today?

Download the app to see the 7-day schedule.

Predicted tide from Garibaldi, 1.8 kilometers away.

See low tide times at Crab Rocks for the next three days
  1. Sun 15 Nov9:551.4 min the dark22:430.3 m
  2. Mon 16 Nov11:021.4 min the dark23:340.4 m
  3. Tue 17 Nov12:201.3 m

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 July and August.

What should you know before visiting?

Parking is about 550 meters away.
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. Rock pool safety
A rock pool is a fragile place. Look and photograph, take nothing. The rockpooling code

What lives at Crab Rocks?

Species records from iNaturalist

Purple Shore CrabHemigrapsus nudus
Giant Green AnemoneAnthopleura xanthogrammica
Ochre Sea StarPisaster ochraceus
Aggregating AnemoneAnthopleura elegantissima
Frilled DogwinkleNucella lamellosa
Red Rock CrabCancer productus
Yellow Shore CrabHemigrapsus oregonensis
barnacle-eating doridOnchidoris bilamellata
Thatched BarnacleSemibalanus cariosus
RockweedFucus distichus
Dungeness CrabMetacarcinus magister
Rockweed isopodPentidotea wosnesenskii
Pacific Sea NettleChrysaora fuscescens
Pacific Hairy Hermit CrabPagurus hirsutiusculus
winged kelpAlaria marginata
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.