Skip to content
Map of Four Mile Island
Add the first photo
IntermediateBoat entry

Four Mile Island

Georgia, United States
Intertidal reef structures (pallet balls, fish aggregating device) lie at 0-3 ft MLW0–1 m (0–3 ft) depthBoat entry5mm wetsuit typical

Boat dive — see Entry & access.

Four Mile Island at a glance

Four Mile Island is an intermediate boat dive site in Georgia, United States with depths of 0–0.9 m (0–3 ft). Typically most favorable Mar–Aug · from 2 years of archive data. Recent reports put the water around 21°C (70°F). Check the latest conditions and entry details before you go.

Next window today· 14:00–19:00 · moderate · sunset 18:42

Forecast for this hour · 13:00 · run under 1 h ago
1.3 m (4.3 ft)waves — about a meter and a half expected (waves — about four feet expected)

Tap a factor for its source and model point

Site hazards: Intertidal reef structures (pallet balls, fish aggregating device) lie at 0-3 ft MLW

Read the full hazards ↓

Dive windows this week

Smallest waves: Sat
Sun14:00–19:00 moderate

1.4 m waves · 13 kn wind (4.5 ft waves · 13 kn wind)

Mon8:00–10:00 favorable, 10:00–11:00 moderate, 11:00–19:00 favorable

1.2 m waves · 12 kn wind (4.0 ft waves · 12 kn wind)

Tue8:00–19:00 favorable

1.0 m waves · 9 kn wind (3.2 ft waves · 9 kn wind)

Wed8:00–19:00 favorable

1.1 m waves · 10 kn wind (3.4 ft waves · 10 kn wind)

Thu8:00–19:00 favorable

1.0 m waves · 11 kn wind (3.4 ft waves · 11 kn wind)

Fri8:00–19:00 favorable

0.9 m waves · 9 kn wind (2.8 ft waves · 9 kn wind)

Sat8:00–19:00 favorable

0.7 m waves · 9 kn wind (2.2 ft waves · 9 kn wind)

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wave and wind forecasts. Numbers under each bar are daylight averages.

First light 7:10 · Sunrise 7:35 · Sunset 18:42 · some windows run past sunset

Source: Open-Meteo marine · model point 12 km from site · updated 25 Oct, 13:22 GMT-4

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Four Mile Island

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

Best time: Not applicable — this is an intertidal fishing reef, not a dive site, and is effectively undivable.

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. January, 100% of days have historically been favorable, waves have typically been 0.3 m (0.8 ft), wind has typically been 9 knots
  2. February, 100% of days have historically been favorable, waves have typically been 0.3 m (1.0 ft), wind has typically been 9 knots
  3. March, 100% of days have historically been favorable, waves have typically been 0.3 m (1.1 ft), wind has typically been 9 knots, historically most favorable
  4. April, 100% of days have historically been favorable, waves have typically been 0.3 m (1.1 ft), wind has typically been 9 knots, historically most favorable
  5. May, 100% of days have historically been favorable, waves have typically been 0.3 m (1.0 ft), wind has typically been 8 knots, historically most favorable
  6. June, 100% of days have historically been favorable, waves have typically been 0.3 m (1.0 ft), wind has typically been 8 knots, historically most favorable
  7. July, 100% of days have historically been favorable, waves have typically been 0.3 m (1.0 ft), wind has typically been 7 knots, historically most favorable
  8. August, 100% of days have historically been favorable, waves have typically been 0.4 m (1.1 ft), wind has typically been 8 knots, historically most favorable
  9. September, 98% of days have historically been favorable, waves have typically been 0.4 m (1.3 ft), wind has typically been 8 knots
  10. October, 100% of days have historically been favorable, waves have typically been 0.4 m (1.3 ft), wind has typically been 8 knots, historically most favorable
  11. November, 100% of days have historically been favorable, waves have typically been 0.3 m (1.0 ft), wind has typically been 8 knots, historically most favorable
  12. December, 100% of days have historically been favorable, waves have typically been 0.3 m (1.1 ft), wind has typically been 8 knots, historically most favorable

March, April, May, June, July, August, October, November, and December have typically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 1 year of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life recorded at this site

No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated June 2026

Site details

Four Mile Island is a dive site in United States. Maximum depth is around 1 m. The site is reached by boat. Rated intermediate based on available data.

reef

Intertidal reef structures (pallet balls, fish aggregating device) lie at 0-3 ft MLW — at or just below the surface and exposed at low tide — making the site a grounding hazard for boats; it is marked with two pilings. Not suitable for diving.

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

Spot something off?

Help keep this listing accurate for the next diver.