About Jachthaven de Vlonder
Marina "De Vlonder" is a small and cozy marina, quietly located in side channel D of the North Sea Canal, next to the lock of the hamlet of Nauerna Assendelft. It is a base for the beautiful sailing area in North Holland, Alkmaardermeer, via the North Sea Canal to Haarlem, Ijmuiden, the North Sea, and to Amsterdam. There is a beautiful terrace with a nice view over side channel D.

Facilities
COORDINATES
52.43952 N, 4.75294 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
2 - 3m
Manoeuvrability
Fair
Channel Marking
Fair
Overseas Visitor Berths
Yes
Dock Type
Fixed
Style Stern To
Yes
Tidal Flow
Nil
Active Winter
Yes
Weather Forecast
Sun
5AM - 9AM
05 April 2026
- W 24 knots decreasing to 20 knots. Gusts up to 42 knots.
- 8 to 11°C
- UV Index: 0 - Low
- Cloudy
Sun
9AM - 1PM
05 April 2026
- W 19 knots decreasing to 16 knots. Gusts up to 32 knots.
- 8°C
- UV Index: 0 - Low
- Cloudy
Sun
1PM - 5PM
05 April 2026
- W 14–16 knots. Gusts up to 24 knots.
- 9°C
- UV Index: 3 - Moderate
- Mostly fine