Forme 4 is a unique dive site in France. The site is a flooded dry dock in the middle of the port of Dunkirk. Where in the dock ships were once maintained or dismantled, divers now enjoy a beautiful underwater world. The infrastructure of the dry dock is still clearly visible, with pontoons on the surface and beautifully overgrown tools on the bottom. This makes a dive in Forme 4 somewhat look like a wreck dive in the North Sea. The dock is no deeper than 9 meters and is home to numerous species, such as black-eyed lipped fish, stonefish, eels, sea bass, tubeworms and more. Permit required.
Dive site Forme 4 has limited parking space fairly close to the entry point. Make sure you can join a permit holder. This person will call the harbor master upon arrival after which you can enter the site via a concrete staircase.
To dive in Forme 4 a permit is required. A dive must always be signed in and out with the harbor master. Dive buoy or dive flag required. Thick sediment layer. Stay more than one meter from the bottom.
FORME 4 Features
- Rte de l'Écluse Trystram, 59140 Dunkerque
- Limited paved parking
- 20 m.
- Suitable for
- All levels
- Vergunning vereist / License required
- Free access
- Kind of dive
- Night dive, shallow dive, harbour dive, underwater photography
- 1 - 4 m.
- Average visibility
- 2 m.
- 9 m.
- beton en grind of kiezel(stenen)
- Horned blenny, pouting, eel, sea bass
- Other recreation
- Only after consultation