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Map of USS San Diego (ACR-6)
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USS San Diego (ACR-6)

New York, United States
AOW suggested18–33 m depthBoat entry5mm wetsuit typical

Boat dive — see Entry & access.

USS San Diego (ACR-6) at a glance

USS San Diego (ACR-6) is a advanced boat dive site in New York, United States with depths of 18–33 m (59–108 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Black sea bass, Tautog (blackfish), and Atlantic cod. Recent reports put the water around 22°C (71°F). Check the latest conditions and entry details before you go.

Marine model · graded 5h ago
1.0 mwaves — about a meter expected

Tap a factor for its source and model point · Forecast 22°C · seasonal avg 23°C

Site hazards: Depth (~100-110 ft), overturned hull and penetration risk, currents, boat traffic, cold water requiring exposure protection; entanglement from monofilament.

Read the full hazards ↓

Dive windows this week

Best: Mon
Sun6:00–21:00
Mon6:00–21:00
Tue6:00–21:00
Wed6:00–21:00
Thu6:00–21:00
Fri6:00–21:00
Sat6:00–21:00

Favorable windowModerate window— no window

First light 5:12 · Sunrise 5:43 · Sunset 20:13

Source: Open-Meteo marine · model point 6.8 km from site · graded 5h 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.

What Divers Say

Known for: Black sea bass, Tautog (blackfish), Lobster
Best time: Summer through early fall for warmest water and 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. Jan30%6°C1.7 m
  2. Feb34%5°C1.7 m
  3. Mar26%6°C1.8 m
  4. Apr40%8°C1.5 m
  5. May62%13°C1.3 m
  6. Jun76%18°C1.1 m
  7. Jul77%23°C1.1 m
  8. Aug67%22°C1.3 m
  9. Sep51%21°C1.5 m
  10. Oct49%18°C1.6 m
  11. Nov40%14°C1.4 m
  12. Dec31%9°C1.7 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

  • Black sea bassCommonly seen
  • Tautog (blackfish)Commonly seen
  • Atlantic codSeasonal
  • Conger eelOccasionally seen
  • LobsterCommonly seen
  • Ling (red hake)Occasionally seen

Fills & rentals nearby

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

Site details

The wreck of the armored cruiser USS San Diego, torpedoed/mined by U-156 on 19 July 1918 off Fire Island and sunk in 28 minutes, the only major US warship lost in World War I. It lies inverted in about 110 feet of water off Cherry Grove, Fire Island, and is one of the most famous wreck dives in the Northeast. An advanced boat dive with penetration potential and significant artifacts.

boatwreck

Depth (~100-110 ft), overturned hull and penetration risk, currents, boat traffic, cold water requiring exposure protection; entanglement from monofilament.

Reviews

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