All resultsExplore/Dominica/Secret Arch
Secret Arch
Portsmouth, Dominica
Water bodyCaribbean Sea
Water temp27–29°C
Estimated from climate dataOct–Jul
About this site
Secret Arch is a reef dive site near Portsmouth, Saint John, Dominica, in the Caribbean Sea. Marine life recorded within about 5 km (OBIS/GBIF) includes groupers, nudibranchs, moray eels, octopus, dolphins. Typical surface water temperature ranges from about 27 to 29 °C over the year.
Conditions by month
BestGoodMixedOctoberBest
Typically one of the best months here.
Marine life
Recorded nearby
BlueheadThalassoma bifasciatum
Spiny UrchinDiadema antillarum
Rusty GobyPriolepis hipoliti
Tusked GobyRisor ruber
Pallid GobyCoryphopterus eidolon
Yellowhead WrasseHalichoeres garnoti
FlamefishApogon maculatus
Masked GobyCoryphopterus personatus
Nearby sites
- 1Toucari North1.2 km
- 2Toucari Bay1.4 km
- 3Tube Reef1.7 km
- 4Split Rock2.0 km
- 5Coral garden3.5 km
- 65-Finger Rock3.6 km
Straight-line distances.
Sources: Species occurrences: OBIS (CC BY 4.0), GBIF.org