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Map of 7 - P3 and Dolphin
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IntermediateBoat entry

7 - P3 and Dolphin

Delaware, United States
Open Water suggested13 m depthBoat entry3mm wetsuit typical

Boat dive — see Entry & access.

7 - P3 and Dolphin at a glance

7 - P3 and Dolphin is an intermediate boat dive site in Delaware, United States with depths of up to 12.8 m (42 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Blue mussel (encrusting reef structure), Bluefish, and Scup (porgy). Recent reports put the water around 26°C (78°F). Check the latest conditions and entry details before you go.

Marine model · graded 1h ago
0.4 mwaves — under half a meter expected

Tap a factor for its source and model point · Forecast 26°C · seasonal avg 24°C

Site hazards: Tidal currents in Delaware Bay (dive at slack water). Low, turbid bay visibility. The bay reef sites sit close to the shipping lanes, so boat traffic is a real concern. Entanglement risk from monofilament line and lost tackle, since the reef is primarily a fishing destination, plus sharp edges on the deteriorating steel hulls and concrete.

Read the full hazards ↓

Dive windows this week

Best: Sun
Fri14:00–20:00
Sat7:00–20:00
Sun7:00–20:00
Mon7:00–20:00
Tue7:00–20:00
Wed7:00–20:00
Thu7:00–20:00

Favorable windowModerate window— no window

First light 6:11 · Sunrise 6:38 · Sunset 19:15

Source: Open-Meteo marine · model point 7.5 km from site · graded 1h 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: Blue mussel (encrusting reef structure), Scup (porgy), Tautog (blackfish)
Best time: Late spring through early fall when bay conditions are calmest; best at slack tide with light wind to limit current and improve 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. Jan56%4°C0.8 m
  2. Feb58%5°C0.8 m
  3. Mar52%7°C0.9 m
  4. Apr69%12°C0.8 m
  5. May88%18°C0.7 m
  6. Jun89%23°C0.6 m
  7. Jul94%27°C0.5 m
  8. Aug91%26°C0.6 m
  9. Sep92%24°C0.7 m
  10. Oct73%18°C0.7 m
  11. Nov64%13°C0.8 m
  12. Dec63%6°C0.8 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

Artificial reef built from Concrete, Plus 35' and 42' Steel Vessels (“P3” and “Dolphin”)

reefwreck

Tidal currents in Delaware Bay (dive at slack water). Low, turbid bay visibility. The bay reef sites sit close to the shipping lanes, so boat traffic is a real concern. Entanglement risk from monofilament line and lost tackle, since the reef is primarily a fishing destination, plus sharp edges on the deteriorating steel hulls and concrete.

Reviews

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