Discover Scuba Diving -- St. Croix, US Virgin Islands

Frederiksted Pier

Dive site in the US Virgin Islands. Here's what has been recorded at this site month by month, how the region’s reefs have weathered ocean heat, and how to prepare.

US Virgin Islandspier
At this sitegeotagged 538 m from the site coordinates Discover Scuba Diving -- St. Croix, US Virgin Islands · Summitandbeach · CC BY-SA 4.0 · Wikimedia Commons
Atlantic sergeant major (Abudefduf saxatilis)
Chapter I · Arrival

Frederiksted Pier: dive site in the US Virgin Islands.

~17.714° N~64.888° W · Wikidata
4,941open records · GBIF
161species recorded
At this sitegeotagged 64 m from the site coordinates Atlantic sergeant major (Abudefduf saxatilis) · Kristy Morley · CC BY 4.0 · iNaturalist
II

Entry

Atlantic sergeant major (Abudefduf saxatilis)

Shore and boat entries vary by site. We list only rules we can cite from official sources; entry points, depths and currents will be added once we can verify them.

Approximate positionThese coordinates come from a crowd-sourced map or Wikidata item, not an official mooring list. Use them for orientation only.
To verifyDepth range, entry points and current notes. We publish them only with a citation. The coordinates mark the site in general, not a mooring or entry point.
Local rules (cited)
  • Buck Island Reef National Monument: scuba diving is allowed only at the two designated scuba moorings in the north lagoon, not on the underwater trail. Do not stand on or handle corals. NPS · Buck Island Reef NM
  • Buck Island: private boats may anchor only in the anchorage area off West Beach. NPS · Buck Island Reef NM

At this sitegeotagged 64 m from the site coordinates Atlantic sergeant major (Abudefduf saxatilis) · Kristy Morley · CC BY 4.0 · iNaturalist

Discover Scuba Diving -- St. Croix, US Virgin Islands
Open media · At this sitegeotagged 538 m from the site coordinates Discover Scuba Diving -- St. Croix, US Virgin Islands · Summitandbeach · CC BY-SA 4.0 · Wikimedia Commons

The surface noise falls away.

Reds go first. The world turns blue-green.

Then Frederiksted Pier rises to meet you.

Discover Scuba Diving -- St. Croix, US Virgin Islands
IV

What lives here, by month

Pick a month. These are the species most often recorded within about a kilometre in that month, from open survey records.

Oct
October · 289 qualifying records
Life calendar · records per month for this site's most-recorded species (blank means not in that month's top list)
SpeciesJanFebMarAprMayJunJulAugSepOctNovDec
Mustard Hill Coral
Common Lionfish
Massive Starlet Coral
Lettuce Coral
Sergeant Major
Yellow Goatfish
Ten-ray Star Coral
Blushing Star Coral
Bluehead Wrasse
Banded butterflyfish
Great Star Coral
Bumpy star coral

Most-recorded species, all months

  1. Mustard Hill Coral (20)
  2. Common Lionfish (18)
  3. Massive Starlet Coral (13)
  4. Lettuce Coral (12)
  5. Sergeant Major (9)
  6. Ten-ray Star Coral (8)
  7. Yellow Goatfish (8)
  8. Blushing Star Coral (8)
  9. Great Star Coral (7)
  10. Bluehead Wrasse (7)
  11. Bumpy star coral (7)
  12. Banded butterflyfish (7)
  13. Trumpetfish (5)
  14. Lesser Starlet Coral (4)
  15. Maze Coral (4)
  16. French Grunt (4)
  17. French angelfish (4)
  18. Yellowline Arrow Crab (4)
  19. Squirrelfish (4)
  20. Spot-fin porcupinefish (4)

GBIF.org (2026-10-15), occurrence records within ~1 km, licensed CC0 or CC BY 4.0 only. Birds and land animals are excluded. Counts reflect survey effort, not abundance. 4,941 qualifying records. See them on GBIF. Common names: Wikidata (CC0) / GBIF. Species photos: Wikimedia Commons, credited with each species.

V

Forty-one summers of heat

Each stripe is one year since 1985, colored by its peak heat stress across NOAA's “Virgin Islands” region. These are NOAA Coral Reef Watch satellite figures for the whole region, not for this one site.

19852026
Reef health report · Virgin Islands

Heat stress, measured from orbit.

Degree Heating Weeks · 2026-10-139.5°C-weeks · NOAA status: Alert Level 2

NOAA CRW virtual station “Virgin Islands”. NOAA's alert thresholds are 4 °C-weeks (Alert Level 1) and 8 °C-weeks (Alert Level 2). Station page · Method. Credit: NOAA Coral Reef Watch.

Peak per year · dashed lines at 4, 8 and 16 °C-weeks
The past twelve months
VI

Conditions

Average sea temperature through the year. Check the live readings before you go.

Average sea surface temperature by month: NOAA CRW “Virgin Islands” station climatology (monthly means).

Buoy readings are measurements; forecasts are models. Use them for planning only, and assess conditions on site. Depth and visibility data aren't listed until we can cite a source.

VII

Plan & prepare

  1. Read the official marine forecast the night before.Offshore, wind and sea state decide the day.
  2. Check the cited local rules above and pay any park fee before you dive.[Placeholder: verified operator list to come]
  3. Study this month's species above.You'll recognise more when you know the names.
  4. Hands off, fins up, buoyancy dialled. Log what you see.Your sightings can become tomorrow's open data.

Credits

Coordinates
Wikidata Q20828421 (CC0). Wikidata (CC0), mostly from US Geological Survey place names, plus one OpenStreetMap (ODbL) reef. Several use the named bay, cay or island, so treat them as approximate.
Species records
GBIF.org, CC0 & CC BY 4.0 records. By license: CC_BY_4_0: 4,708, CC0_1_0: 233
Dataset
EOD – eBird Observation Dataset · doi:10.15468/aomfnb (4,420 records) · GBIF
Dataset
iNaturalist Research-grade Observations · doi:10.15468/ab3s5x (148 records) · GBIF
Dataset
NOAA, Deep-Sea Coral Research and Technology Program · doi:10.15468/aqbftj (103 records) · GBIF
Dataset
NOAA National Coral Reef Monitoring Program Coral Demographic Data · doi:10.7289/v5vd6wts (77 records) · GBIF
Dataset
Biodiversity Research and Teaching Collections - TCWC Marine Invertebrates · doi:10.15468/dfrwoh (31 records) · GBIF
Dataset
KUBI Mammalogy Collection · doi:10.15468/a3woj7 (27 records) · GBIF
Dataset
NOAA National Coral Reef Monitoring Program Coral Benthic Assessment Data · doi:10.7289/v5vd6wts (27 records) · GBIF
Dataset
NMNH Extant Specimen Records (USNM, US) · doi:10.15468/hnhrg3 (20 records) · GBIF
Query
https://api.gbif.org/v1/occurrence/search?decimalLatitude=17.703944,17.723944000000003&decimalLongitude=-64.89834900000001,-64.878349&license=CC0_1_0&license=CC_BY_4_0&taxonKey=44&taxonKey=206&taxonKey=229&taxonKey=136&taxonKey=225&occurrenceStatus=PRESENT&limit=0
Heat stress & SST
NOAA Coral Reef Watch, 5 km Regional Virtual Station “Virgin Islands”
Hero photo
At this sitegeotagged 538 m from the site coordinates Discover Scuba Diving -- St. Croix, US Virgin Islands · Summitandbeach · CC BY-SA 4.0 · Wikimedia Commons
Arrival photo
At this sitegeotagged 64 m from the site coordinates Atlantic sergeant major (Abudefduf saxatilis) · Kristy Morley · CC BY 4.0 · iNaturalist
Gallery
7 photos, credited under each image
Species photos
Wikimedia Commons, credited with each species. Full list: Data & sources