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Golfo Dulce Forest Reserve

Osa, Puntarenas · Costa Rica

What have people found?

Narrow tree crab, purple bristle crab and thorn latirus turn up here more than at our other rock pools. Ecuadorian hermit crab, sally lightfoot crab and halloween crab are the usual finds. ~72 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 Golfo Dulce Forest Reserve for the next three days
  1. Sun 15 Nov~12:30
  2. Mon 16 Novin the dark~1:00~13:00
  3. Tue 17 Novin the dark~1:30~14:00

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 Golfo Dulce Forest Reserve?

Species records from iNaturalist

Ecuadorian Hermit CrabCoenobita compressus
Sally Lightfoot CrabGrapsus grapsus
Halloween CrabHartnollius quadratus
Stokes's ChitonChiton stokesii
Giant False LimpetSiphonaria gigas
Painted Ghost CrabOcypode gaudichaudii
Rough-ribbed NeriteNerita scabricosta
Plicopurpura columellarisPlicopurpura columellaris
American NipperGeograpsus lividus
purple bristle crabEriphides hispida
Lumpy Claw CrabEriphia squamata
Nicaragua sea hareDolabrifera nicaraguana
Pacific Mottled Shore CrabPachygrapsus socius
Thorn LatirusOpeatostoma pseudodon
Narrow Tree CrabArmases angustum
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.