All resultsExplore/St Thomas/Grass Cay
Grass Cay
Cruz Bay, St Thomas, U.S. Virgin Islands
Water bodyCaribbean Sea
Water temp26–29°C
Estimated from climate dataOct–Jul
About this site
Grass Cay is a reef dive site near Cruz Bay, Saint Thomas, U.S. Virgin Islands, in the Caribbean Sea. Marine life recorded within about 5 km (OBIS/GBIF) includes sea fans, sea turtles, groupers, jacks, octopus. Typical surface water temperature ranges from about 26 to 29 °C over the year.
Conditions by month
BestGoodMixedOctoberBest
Typically one of the best months here.
Marine life
Recorded nearby
Spiny UrchinDiadema antillarum
Blue TangAcanthurus coeruleus
BlueheadThalassoma bifasciatum
Stoplight ParrotfishSparisoma viride
Redband ParrotfishSparisoma aurofrenatum
Sergeant MajorAbudefduf saxatilis
French GruntHaemulon flavolineatum
Yellowhead WrasseHalichoeres garnoti
Nearby sites
Straight-line distances.
Sources: Species occurrences: OBIS (CC BY 4.0), GBIF.org