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Balneario Seven Seas

Puerto Rico · Puerto Rico

What have people found?

Scattered pore rope sponge, banded caracol and donkey dung sea cucumber turn up here more than at our other rock pools. Caribbean land hermit crab, atlantic ghost crab and spotted seahare are the usual finds. ~73 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 Balneario Seven Seas for the next three days
  1. Sun 15 Novin the dark5:420.1 min the dark19:530.2 m
  2. Mon 16 Nov6:340.1 min the dark20:280.2 m
  3. Tue 17 Nov7:360.1 min the dark21:040.1 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 February and April.

What should you know before visiting?

Parking is about 150 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 Balneario Seven Seas?

Species records from iNaturalist

Caribbean Land Hermit CrabCoenobita clypeatus
Atlantic Ghost CrabOcypode quadrata
spotted seahareAplysia dactylomela
Checkered NeriteNerita tessellata
Queen ConchAliger gigas
Red Cushion Sea StarOreaster reticulatus
sailor's eyeball algaValonia ventricosa
West Indian Top ShellCittarium pica
Blue Land CrabCardisoma guanhumi
Ribbed BarnacleTetraclita stalactifera
Caribbean Spiny LobsterPanulirus argus
Sally Lightfoot CrabGrapsus grapsus
Scattered Pore Rope SpongeAplysina fulva
Banded CaracolCaracolus marginella
Donkey Dung Sea CucumberHolothuria mexicana
Scan this rock pool on your next visit.

Every organism named, every visit logged to your journal.