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Trou aux Biches Reef
Dive site · Mauritius
Is it worth the trip?
87Good out of 100 for your dates
Best on Mon 9: Sea 0.4 m, Visibility about 30 m, Water 26 °C
Tue 3 · 88 out of 100
- Sea
- 0.6 m
- Wind
- 8 kn
- Gusts
- 17kn
- Air
- 29°C
Wed 4 · 88 out of 100
- Sea
- 0.6 m
- Wind
- 8 kn
- Gusts
- 18kn
- Air
- 29°C
Thu 5 · 88 out of 100
- Sea
- 0.6 m
- Wind
- 10 kn
- Gusts
- 22kn
- Air
- 30°C
Fri 6 · 83 out of 100
- Sea
- 0.7 m
- Wind
- 13 kn
- Gusts
- 27knboats in
- Air
- 29°C
Sat 7 · 84 out of 100
- Sea
- 0.8 m
- Wind
- 13 kn
- Gusts
- 28kn
- Air
- 29°C
Sun 8 · 87 out of 100
- Sea
- 0.6 m
- Wind
- 11 kn
- Gusts
- 24kn
- Air
- 30°C
Mon 9 · 89 out of 100
- Sea
- 0.4 m
- Wind
- 10 kn
- Gusts
- 23kn
- Air
- 30°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 9 days
Full forecast- Tue 388, good
- Wed 488, good
- Thu 588, good
- Fri 683, good
- Sat 784, good
- Sun 887, good
- Mon 989, good
- Tue 1088, good
- Wed 1187, good
The site in five facts
- Down to 12 mits deepest
- From a boathow you get in
- Open Waterand up
- Water 26 °C3 mm wetsuit
- Faces NWswell 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 | 88, good | 0.6 m | 8 kn | 17kn | 29°C |
| Wed 4Nov | 88, good | 0.6 m | 8 kn | 18kn | 29°C |
| Thu 5Nov | 88, good | 0.6 m | 10 kn | 22kn | 30°C |
| Fri 6Nov | 83, good | 0.7 m | 13 kn | 27knboats in | 29°C |
| Sat 7Nov | 84, good | 0.8 m | 13 kn | 28kn | 29°C |
| Sun 8Nov | 87, good | 0.6 m | 11 kn | 24kn | 30°C |
| Mon 9Nov | 89, good | 0.4 m | 10 kn | 23kn | 30°C |
| Tue 10Nov | 88, good | 0.5 m | 12 kn | 24kn | 29°C |
| Wed 11Nov | 87, good | 0.7 m | 11 kn | 26kn | 29°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 NovLow 02:43 −0.2 mHigh 09:55 +0.2 mLow 15:53 −0.1 mHigh 21:47 +0.1 m
- Wed 4 NovLow 03:52 −0.2 mHigh 10:35 +0.2 mLow 16:36 −0.2 mHigh 22:42 +0.2 m
- Thu 5 NovLow 04:40 −0.2 mHigh 11:07 +0.2 mLow 17:11 −0.2 mHigh 23:24 +0.2 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.
Best time to go
No month stands out
Good diving days in a typical week, each month, for Advanced divers, from 2016 on (ERA5 history scored the same way).
- Jan7of 7: a trip from Sat 2 Jan
- Feb7of 7: a trip from Sat 6 Feb
- Mar7of 7: a trip from Sat 6 Mar
- Apr7of 7: a trip from Sat 3 Apr
- May7of 7: a trip from Sat 1 May
- Jun6of 7: a trip from Sat 5 Jun
- Jul6of 7: a trip from Sat 3 Jul
- Aug7of 7: a trip from Sat 7 Aug
- Sep7of 7: a trip from Sat 4 Sept
- Oct7of 7: a trip from Sat 2 Oct
- Nov7of 7: a trip from Wed 4 Nov
- Dec7of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast: the sea and the mean wind of each day, with no gusts or rain in the history.
Map
the site, its town, photos
Trou aux Biches Reef 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.
Photos of Trou aux Biches Reef
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About
the place in full, sources, credits
About Trou aux Biches Reef
A reef 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 NW: swell from the NW reaches it, and wind from the SE blows out to sea. 13 dive centres or shops within 10 km, the nearest 1.3 km away. The sea is about 24°C in July, its coldest month (5 mm wetsuit), and 28°C in January, its warmest (3 mm wetsuit). The town to stay in is Trou aux Biches. Within 5 km we also list 3 surf spots, 2 wind sports spots and 1 dive site.
- What it is Reef.
- 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 13 dive centres or shops within 10 km, the nearest 1.3 km away.
Water about 26°C: 3 mm wetsuit. Typical sea temperature for the time of year, not a forecast.
Visibility about 30 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Mar, Jun, Oct and Dec (over 30 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$1,340–US$2,660 each
about US$1,340–US$2,660 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 MRU, estimated from distance and season, changing at CDG, full-service airlines, with a hold bag | about US$986–US$2,050 |
| Hire car | 6 days, shared | about US$67–US$114 |
| Stay | 6 nights, a mid-range double, shared | about US$134–US$221 |
| Food | 7 days eating out | about US$154–US$282 |
| Total | about US$1,340–US$2,660 |
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: Trou aux Biches
Ad Links marked Ad may pay us if you book. You pay the same, and they never change a score. How we earn
about 5 min by car · 36 places to stay
about US$47/nightcountry average
About Trou aux Biches its beds, food and every spot near it
About US$47 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. 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 29h 35m
About 29h 35m door to door from Chicago
Fly ORD → MRU, changing at Charles de Gaulle International Airport (CDG), then 1h 05m by road
Flights ORD → MRU 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 Trou aux Biches · GetYourGuideDive gear hire in Trou aux Biches · GetYourGuide
Dive centres nearby
Bigorno Diving Center 1.3 km
Dive Drem Divers Mauritius 1.4 km
Pro Dive Mauritius 2.2 km
Blue Water Diving Center 2.5 km
Pro Dive Mauritius 2.5 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.
Burnt Parrotfish Chlorurus sordidus
Seen in 5 records.
Manini Acanthurus triostegus
Seen in 3 records.
Yellow teardrop butterflyfish Chaetodon interruptus
Seen in 3 records.
Geometric moray Gymnothorax griseus
Seen in 3 records.
Checkerboard wrasse Halichoeres hortulanus
Seen in 3 records.
Lethrinus harakEmperors
Seen in 3 records.
Sixbar wrasse Thalassoma hardwicke
Seen in 3 records.
Moorish idol Zanclus cornutus
Seen in 3 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; Programme CROMIS: carnet de plongée en ligne de la FFESSM-Observations d'espèces subaquatiques collectées par les utilisateurs de CROMIS. Credits
This week's visibility and the current no free forecast gives. Ask a dive centre before you book.
Saved: this link opens the same trip
The link holds the trip itself: nothing about you is kept. Check the forecast again before you book.