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Southeast Farallon

San Francisco, California · United States

What have people found?

Blue-ringed top snail, flame lined chiton and egg-yolk jelly turn up here more than at our other rock pools. Striped shore crab, giant green anemone and pacific purple sea urchin are the usual finds. ~103 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 Point Reyes, 32.8 kilometers away.

See low tide times at Southeast Farallon for the next three days
  1. Sun 15 Nov8:151.2 min the dark21:240.1 m
  2. Mon 16 Nov9:441.1 min the dark22:130.2 m
  3. Tue 17 Nov11:081.0 min the dark23:000.3 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 January and February.

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. Rock pool safety
A rock pool is a fragile place. Look and photograph, take nothing. The rockpooling code

What lives at Southeast Farallon?

Species records from iNaturalist

Striped Shore CrabPachygrapsus crassipes
Giant Green AnemoneAnthopleura xanthogrammica
Pacific Purple Sea UrchinStrongylocentrotus purpuratus
Owl LimpetLottia gigantea
Egg-yolk JellyPhacellophora camtschatica
Aggregating AnemoneAnthopleura elegantissima
Bat StarPatiria miniata
Pacific Sea NettleChrysaora fuscescens
By-the-wind SailorVelella velella
Common Rough WoodlousePorcellio scaber
Gooseneck BarnaclePollicipes polymerus
Flame Lined ChitonTonicella lokii
Feather Boa KelpEgregia menziesii
Blue-Ringed Top SnailCalliostoma ligatum
California MusselMytilus californianus
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.