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Map of J Reef (JY Reef)
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J Reef (JY Reef)

Georgia, United States
AOW suggested17–24 m depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

J Reef (JY Reef) at a glance

J Reef (JY Reef) is an advanced boat dive site in Georgia, United States with depths of 16.8–23.7 m (55–78 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Red snapper, Sandbar shark, and King mackerel. Recent reports put the water around 29°C (84°F). Check the latest conditions and entry details before you go.

Marine model · graded 17h ago
0.6 mwaves — under a meter expected

Tap a factor for its source and model point · Forecast 29°C · seasonal avg 27°C

Site hazards: Current on the wreck (anchor-line descents/ascents advised), jellyfish in the water column, thermocline around 35-40 ft, silt-out risk inside the wreck, seasickness-inducing chop

Read the full hazards ↓

Dive windows this week

Best: Sun
Fri7:00–19:00
Sat7:00–19:00
Sun7:00–19:00
Mon7:00–19:00
Tue7:00–15:00
Wed12:00–19:00
Thu7:00–19:00

Favorable windowModerate window— no window

First light 5:40 · Sunrise 6:05 · Sunset 18:34

Source: Open-Meteo marine · model point 2.8 km from site · graded 17h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Red snapper, Atlantic spadefish, Great barracuda
Best time: Late spring through early fall on calm days, timed to the tide for best visibility

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan78%12°C0.8 m
  2. Feb69%14°C0.9 m
  3. Mar72%17°C0.9 m
  4. Apr84%21°C0.9 m
  5. May83%25°C0.8 m
  6. Jun84%28°C0.8 m
  7. Jul94%30°C0.7 m
  8. Aug81%30°C0.9 m
  9. Sep67%27°C1.1 m
  10. Oct61%23°C1.1 m
  11. Nov72%20°C0.9 m
  12. Dec61%15°C1.0 m

July hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Data updated June 2026

Site details

An offshore reef area 17.5 nautical miles east of St. Catherines Island combining natural live-bottom ledges with added structure including the upright Coast Guard ship Sagebrush, subway cars, M-60 tanks and a Liberty ship. Bottom depths run 55-75 ft, and the coral-encrusted Sagebrush wreck is the signature dive, reached by roughly 1.5-hour charter runs from marinas such as Fort McAllister in Richmond Hill. Currents, thermoclines and changeable visibility (30-50 ft) make this comparable to Panhandle wreck diving.

boatreefwreck

Current on the wreck (anchor-line descents/ascents advised), jellyfish in the water column, thermocline around 35-40 ft, silt-out risk inside the wreck, seasickness-inducing chop

Reviews

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