NRDA Grant Reefs
Dive site · United States
Advanced divers and up
Is it worth the trip?
70Good out of 100 for your dates
3 days tie for best
Mon 2 · 64 out of 100
- Sea
- 0.9 m
- Wind
- 10 kn
- Gusts
- 14kn
- Air
- 26°C
Tue 3 · 65 out of 100
- Sea
- 0.9 m
- Wind
- 13 kn
- Gusts
- 17kn
- Air
- 24°C
Wed 4 · 64 out of 100
- Sea
- 0.7 m
- Wind
- 11 kn
- Gusts
- 19kn
- Air
- 24°C
Thu 5 · 72 out of 100
- Sea
- 0.2 mflat
- Wind
- 2 kn
- Gusts
- 4kn
- Air
- 24°C
Fri 6 · 71 out of 100
- Sea
- 0.3 m
- Wind
- 5 kn
- Gusts
- 13kn
- Air
- 23°C
Sat 7 · 72 out of 100
- Sea
- 0.2 mflat
- Wind
- 4 kn
- Gusts
- 20kn
- Air
- 22°C
Sun 8 · 72 out of 100
- Sea
- 0.1 mflat
- Wind
- 6 kn
- Gusts
- 11kn
- Air
- 21°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Sun 158, fair
- Mon 264, good
- Tue 365, good
- Wed 464, good
- Thu 572, good
- Fri 671, good
- Sat 772, good
- Sun 872, good
- Mon 968, good
- Tue 1063, good
The site in five facts
- Down to 28 mits deepest
- From a boathow you get in
- Advancedand up
- Water 23 °C5 mm wetsuit
- Faces SWswell 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 Advanced divers and up, as a dive guide states it. Scored for Advanced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Sun 1Nov | 58, fair | 1.0 m | 17 kn | 28kn | 24°C |
| Mon 2Nov | 64, good | 0.9 m | 10 kn | 14kn | 26°C |
| Tue 3Nov | 65, good | 0.9 m | 13 kn | 17kn | 24°C |
| Wed 4Nov | 64, good | 0.7 m | 11 kn | 19kn | 24°C |
| Thu 5Nov | 72, good | 0.2 mflat | 2 kn | 4kn | 24°C |
| Fri 6Nov | 71, good | 0.3 m | 5 kn | 13kn | 23°C |
| Sat 7Nov | 72, good | 0.2 mflat | 4 kn | 20kn | 22°C |
| Sun 8Nov | 72, good | 0.1 mflat | 6 kn | 11kn | 21°C |
| Mon 9Nov | 68, good | 0.5 m | 11 kn | 24kn | 20°C |
| Tue 10Nov | 63, good | 0.7 m | 14 kn | 28kn | 17°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
- Sun 1 NovHigh 00:42 +0.3 mLow 13:06 −0.2 m
- Mon 2 NovHigh 02:01 +0.2 mLow 13:58 −0.1 m
- Tue 3 NovHigh 05:29 +0.2 mLow 14:38 −0.1 mHigh 19:57 +0.0 mLow 22:52 +0.0 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).
- Jan6of 7: a trip from Sat 2 Jan
- Feb7of 7: a trip from Sat 6 Feb
- Mar6of 7: a trip from Sat 6 Mar
- Apr7of 7: a trip from Sat 3 Apr
- May7of 7: a trip from Sat 1 May
- Jun7of 7: a trip from Sat 5 Jun
- Jul7of 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 Mon 2 Nov
- Dec6of 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 and its town
NRDA Grant Reefs on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.
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
2 places
- Inlet Beach Fish/Dive Reef 17 km away
- Grouper Snorkel Reef 17.9 km away
About
the place in full, sources, credits
About NRDA Grant Reefs
A reef dive. It goes down to 28 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces SW: swell from the SW reaches it, and wind from the NE blows out to sea. No dive centre within 10 km, the nearest 20 km away. The sea is about 17°C in February, its coldest month (7 mm wetsuit and hood), and 30°C in July, its warmest (rash vest or 1 to 2 mm). The town to stay in is Inlet Beach. Within 5 km we also list 1 dive site.
- What it is Reef.
- How deep Down to 28 m.
- Getting in From a boat.
- Who it suits Suits Advanced divers and up, as a dive guide states it.
- Dive centres No dive centre within 10 km, the nearest 20 km away.
Water about 23°C: 5 mm wetsuit. Typical sea temperature for the time of year, not a forecast.
Visibility about 8 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Jan, Feb, Mar, Apr, May, Jun, Jul, Aug and Dec (about 10 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$884–US$1,610 each
about US$884–US$1,610 each · 6 nights, 2 sharing: flights, taxi, 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 30 October 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return MDW to ECP, estimated from distance and season, 1 airline on the route, with a hold bag | about US$167–US$342 |
| Taxi | airport and back, shared | about US$74–US$127 |
| Stay | 6 nights, a mid-range double, shared | about US$301–US$502 |
| Food | 7 days eating out | about US$342–US$636 |
| Total | about US$884–US$1,610 |
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: Inlet Beach
33 min by car · 66 places to stay
about US$114/nightcountry average
About Inlet Beach its beds, food and every spot near it
About US$114 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 30 October 2026.
Getting there: about 5h
About 5h door to door from Chicago
Fly MDW → ECP, direct, then 55 min by road
Flights MDW → ECP on your dates · Skyscanner
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Inlet Beach · GetYourGuideDive gear hire in Inlet Beach · GetYourGuide
Dive centres nearby
Big Willy's Surf & Swim 20 km
Diver's Den 24 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
Animals divers and surveys have recorded within 2 km of this site in the last 15 years. A record says someone saw it here, not that you will.
Loggerhead turtle Caretta carettaSea turtle
Seen in 5 records.
Records: OBIS (Ocean Biodiversity Information System, IOC-UNESCO), from the datasets named here, CC0 and CC BY records only. Names: WoRMS, through OBIS; common names from Wikidata. Largest datasets here: Sightings for AN/AQS-20 Sonar Aerial Monitoring in the NSWC PCD Study Area from July 2011 and May 2012; Sightings for AN/AQS-20 Sonar Test Event - December 2013. Credits
This week: visibility about 8 m, about usual for the month (satellite plankton reading, 24 Oct). Estimated from the month's typical visibility and this week's satellite chlorophyll against the site's normal; heavy rain before a dive can still muddy it.
The current no free forecast gives. Ask a dive centre before you book.