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Rialto Beach, Olympic National Park

What have people found?

Fingered limpet, sleepy seaslater and striped dogwinkle turn up here more than at our other rock pools. Ochre sea star, pacific banana slug and pacific hairy hermit crab are the usual finds. ~15 distinct species have been recorded here. More has been recorded at Botanical Beach, 70 kilometers away.

What is the best time to visit today?

Download the app to see the 7-day schedule.

Predicted tide from La Push, Quillayute River, 2 kilometers away.

See low tide times at Rialto Beach, Olympic National Park for the next three days
  1. Sun 15 Nov9:461.5 min the dark22:360.4 m
  2. Mon 16 Nov10:571.5 min the dark23:280.5 m
  3. Tue 17 Nov12:181.4 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 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. Rock pool safety
A rock pool is a fragile place. Look and photograph, take nothing. The rockpooling code

What lives at Rialto Beach, Olympic National Park?

Species records from iNaturalist

Ochre Sea StarPisaster ochraceus
Pacific Banana SlugAriolimax columbianus
Pacific Hairy Hermit CrabPagurus hirsutiusculus
Black TegulaTegula funebralis
Aggregating AnemoneAnthopleura elegantissima
Feather Boa KelpEgregia menziesii
Striped DogwinkleNucella ostrina
Giant Green AnemoneAnthopleura xanthogrammica
Fingered LimpetLottia digitalis
Sleepy SeaslaterLigia pallasii
Frilled DogwinkleNucella lamellosa
Giant KelpMacrocystis pyrifera
Purple Shore CrabHemigrapsus nudus
Pacific Sea NettleChrysaora fuscescens
California MusselMytilus californianus
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.