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Titlow Beach Marine Preserve

Pierce County, Washington · United States

What have people found?

Ridge-tailed dorid, flattop crab and humped ancula sea slug turn up here more than at our other rock pools. Horned nudibranch, mottled star and white-lined dirona are the usual finds. ~203 distinct species have been recorded here, across at least 6 years of observations.

What is the best time to visit today?

Download the app to see the 7-day schedule.

Predicted tide from Tacoma, Commencement Bay, Sitcum Waterway, 10.5 kilometers away.

See low tide times at Titlow Beach Marine Preserve for the next three days
  1. Sun 15 Novin the dark1:580.0 m16:152.3 m
  2. Mon 16 Novin the dark2:460.2 min the dark17:242.1 m
  3. Tue 17 Novin the dark3:390.5 min the dark18:171.8 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 April and May.

What should you know before visiting?

Parking is about 300 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 Titlow Beach Marine Preserve?

Species records from iNaturalist

Horned NudibranchHermissenda crassicornis
Mottled StarEvasterias troschelii
White-lined DironaDirona albolineata
Three-lined AeolidOrienthella trilineata
Branched DendronotidDendronotus venustus
Orange Sea CucumberCucumaria miniata
Red Rock CrabCancer productus
Ridge-tailed DoridDiaphorodoris lirulatocauda
Ochre Sea StarPisaster ochraceus
Yellow Shore CrabHemigrapsus oregonensis
Northern Kelp CrabPugettia producta
Flattop CrabPetrolisthes eriomerus
Humped Ancula Sea SlugAncula gibbosa
White-crusted AeolidTenellia albocrusta
Aggregating AnemoneAnthopleura elegantissima
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.