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Trinidad

Humboldt County, California · United States

What have people found?

Horned nudibranch, gumboot chiton and pacific banana slug turn up here more than at our other rock pools. Ochre sea star, giant green anemone and aggregating anemone are the usual finds. ~298 distinct species have been recorded here, across at least 10 years of observations.

What is the best time to visit today?

Download the app to see the 7-day schedule.

Predicted tide from Samoa, 26.1 kilometers away.

See low tide times at Trinidad for the next three days
  1. Sun 15 Nov9:231.3 min the dark22:080.2 m
  2. Mon 16 Nov10:311.3 min the dark22:580.3 m
  3. Tue 17 Nov11:421.1 min the dark23:490.4 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 September.

What should you know before visiting?

Parking is about 200 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 Trinidad?

Species records from iNaturalist

Ochre Sea StarPisaster ochraceus
Giant Green AnemoneAnthopleura xanthogrammica
Aggregating AnemoneAnthopleura elegantissima
Leather StarDermasterias imbricata
Pacific Banana SlugAriolimax columbianus
Striped Shore CrabPachygrapsus crassipes
Gumboot ChitonCryptochiton stelleri
Purple Shore CrabHemigrapsus nudus
Black TegulaTegula funebralis
Bull KelpNereocystis luetkeana
California MusselMytilus californianus
Pacific Purple Sea UrchinStrongylocentrotus purpuratus
Feather Boa KelpEgregia menziesii
Horned NudibranchHermissenda crassicornis
RockweedFucus distichus
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.