The Chimney at Great Dog Island
Dive site · British Virgin Islands
Is it worth the trip?
76Good out of 100 for your dates
2 days tie for best
Tue 3 · 79 out of 100
- Sea
- 0.5 m
- Wind
- 10 kn
- Gusts
- 13kn
- Air
- 29°C
Wed 4 · 80 out of 100
- Sea
- 0.4 m
- Wind
- 6 kn
- Gusts
- 8kn
- Air
- 29°C
Thu 5 · 80 out of 100
- Sea
- 0.3 m
- Wind
- 8 kn
- Gusts
- 11kn
- Air
- 29°C
Fri 6 · 75 out of 100
- Sea
- 0.3 m
- Wind
- 14 kn
- Gusts
- 18kn
- Air
- 28°C
Sat 7 · 65 out of 100
- Sea
- 0.4 m
- Wind
- 15 kn
- Gusts
- 22kn
- Air
- 28°C
Sun 8 · 71 out of 100
- Sea
- 0.3 m
- Wind
- 8 kn
- Gusts
- 14kn
- Air
- 29°C
Mon 9 · 72 out of 100
- Sea
- 0.3 m
- Wind
- 5 kn
- Gusts
- 12kn
- Air
- 28°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Tue 379, good
- Wed 480, good
- Thu 580, good
- Fri 675, good
- Sat 765, good
- Sun 871, good
- Mon 972, good
- Tue 1081, good
- Wed 1181, good
- Thu 1280, good
The site in five facts
- Down to 12 mits deepest
- From a boathow you get in
- Open Waterand up
- Water 29 °Crash vest or 1 to 2 mm
- Faces Nswell from there reaches it
Full forecast
every day, every number
The score doesn't know currents, the visibility on the day or your certification.
Suits Open Water divers and up, as a dive guide states it. Scored for Advanced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Tue 3Nov | 79, good | 0.5 m | 10 kn | 13kn | 29°C |
| Wed 4Nov | 80, good | 0.4 m | 6 kn | 8kn | 29°C |
| Thu 5Nov | 80, good | 0.3 m | 8 kn | 11kn | 29°C |
| Fri 6Nov | 75, good | 0.3 m | 14 kn | 18kn | 28°C |
| Sat 7Nov | 65, good | 0.4 m | 15 kn | 22kn | 28°C |
| Sun 8Nov | 71, good | 0.3 m | 8 kn | 14kn | 29°C |
| Mon 9Nov | 72, good | 0.3 m | 5 kn | 12kn | 28°C |
| Tue 10Nov | 81, good | 0.3 m | 5 kn | 9kn | 28°C |
| Wed 11Nov | 81, good | 0.2 mflat | 8 kn | 12kn | 28°C |
| Thu 12Nov | 80, good | 0.3 m | 8 kn | 12kn | 28°C |
Sea is the waves near the site, in metres; wind and gusts in knots. "Boats in": gusts that keep dive boats in. More
Tide
- Tue 3 NovHigh 03:39 +0.1 mLow 09:34 −0.1 mHigh 16:16 +0.2 mLow 22:48 −0.1 m
- Wed 4 NovHigh 04:54 +0.1 mLow 10:58 −0.1 mHigh 17:12 +0.2 mLow 23:32 −0.1 m
- Thu 5 NovHigh 06:00 +0.2 mLow 12:18 −0.1 mHigh 18:04 +0.1 m
Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Slack water, the safest time to dive where there is current, is about half an hour either side of each high and low. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.
Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.
Map
the site and its town
The Chimney at Great Dog Island on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
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One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
More diving near here
5 places
- Joe's Cave 0.9 km away
- Wall to Wall 1 km away
- Flintstones 1.1 km away
- Shark Point 2.2 km away
- Bronco Billy 2.7 km away
About
the place in full, sources, credits
About The Chimney at Great Dog Island
A cave dive. It goes down to 12 m. You get in from a boat. It suits Open Water divers and up, as a dive guide states it. The coast faces N: swell from the N reaches it, and wind from the S blows out to sea. 1 dive centre or shop within 10 km, the nearest 6.3 km away. The sea is about 27°C in January, its coldest month (3 mm wetsuit), and 29°C in July, its warmest (rash vest or 1 to 2 mm). The town to stay in is Spanish Town. Within 5 km we also list 9 dive sites.
- What it is Cave.
- How deep Down to 12 m.
- Getting in From a boat.
- Who it suits Suits Open Water divers and up, as a dive guide states it.
- Dive centres 1 dive centre or shop within 10 km, the nearest 6.3 km away.
Water about 29°C: rash vest or 1 to 2 mm. Typical sea temperature for the time of year, not a forecast.
Visibility about 15 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Mar, Apr and May (about 20 m).
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Rough cost (estimate): about US$805–US$1,510 each
about US$805–US$1,510 each · 6 nights, 2 sharing: flights, hire car, stay, food.
Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 2 November 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return ORD to STT, estimated from distance and season, 2 airlines on the route, with a hold bag | about US$282–US$590 |
| Hire car | 6 days, shared | about US$101–US$174 |
| Stay | 6 nights, a mid-range double, shared | about US$201–US$329 |
| Food | 7 days eating out | about US$221–US$416 |
| Total | about US$805–US$1,510 |
Guided dives are not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.
Where to stay: Spanish Town
Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn
about 15 min by car · 15 places to stay
About Spanish Town its beds, food and every spot near it
Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 2 November 2026.
Getting there: about 9h 55m
About 9h 55m door to door from Chicago
Fly ORD → STT, direct, then 1h 20m by road
Flights ORD → STT on your dates · AviasalesAdeSIM for your phone · Search on AiraloAd
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Spanish Town · GetYourGuideDive gear hire in Spanish Town · GetYourGuide
Dive centres nearby
Dive BVI 6.3 km
The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits
What you might see
Too few records at this site itself, so these are the animals divers and surveys have recorded at other sites within 25 km in the last 15 years. A record says someone saw it there, not that you will.
Hypanus americanusRay
Seen in 8 records.
Sergeant major Abudefduf saxatilis
Seen in 28 records, mostly Apr to Aug.
Blue tang Acanthurus coeruleus
Seen in 22 records, mostly Dec to Apr.
Bluehead wrasse Thalassoma bifasciatum
Seen in 22 records, mostly Dec to Apr.
French grunt Haemulon flavolineatum
Seen in 16 records, mostly Dec to Apr.
Stoplight parrotfish Sparisoma viride
Seen in 16 records.
Schoolmaster snapper Lutjanus apodus
Seen in 13 records.
Great star coral Montastraea cavernosa
Seen in 13 records, mostly Jun to Aug.
Bar jack Caranx ruber
Seen in 12 records, mostly Mar to May.
Yellowtail snapper Ocyurus chrysurus
Seen in 12 records, mostly Dec to Apr.
Brown chromis Azurina multilineata
Seen in 11 records, mostly Dec to May.
Foureye butterflyfish Chaetodon capistratus
Seen in 10 records.
Records: OBIS (Ocean Biodiversity Information System, IOC-UNESCO) and GBIF.org (1 November 2026, doi:10.15468/dl.jeesns), from the datasets named here, CC0 and CC BY records only. Names: WoRMS and GBIF; common names from the Catalogue of Life, the GBIF Backbone and Wikidata. Largest datasets here: iNaturalist Research-grade Observations; NOAA National Coral Reef Monitoring Program, Coral Demographic Data; NOAA National Coral Reef Monitoring Program, Benthic Cover Data; USGS Nonindigenous Aquatic Species database. Credits
This week's visibility and the current no free forecast gives. Ask a dive centre before you book.
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