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Bolivar Flats Shorebird Sanctuary

Galveston County, Texas · United States

What have people found?

Texas lightning whelk, hays' rocksnail and cancellate cantharus turn up here more than at our other rock pools. Atlantic blue crab, atlantic ghost crab and angelwing are the usual finds. ~83 distinct species have been recorded here.

What is the best time to visit today?

Download the app to see the 7-day schedule.

See low tide times at Bolivar Flats Shorebird Sanctuary for the next three days
  1. Sun 15 Nov12:410.1 m
  2. Mon 16 Nov13:330.2 m
  3. Tue 17 Nov14:400.2 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 March and April.

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 Bolivar Flats Shorebird Sanctuary?

Species records from iNaturalist

Atlantic Blue CrabCallinectes sapidus
Atlantic Ghost CrabOcypode quadrata
AngelwingCyrtopleura costata
Channeled Duck ClamRaeta plicatella
Texas Lightning WhelkSinistrofulgur pulleyi
Hays' RocksnailStramonita canaliculata
Cancellate CantharusSolenosteira cancellaria
False Shark EyeNeverita delessertiana
Portuguese Man o' WarPhysalia physalis
Thinstripe Hermit CrabClibanarius vittatus
Shark EyeNeverita duplicata
Blood ArkLunarca ovalis
Unequal Spoon ClamPeriploma inequale
Eastern OysterCrassostrea virginica
Incongruous ArkAnadara brasiliana
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.