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
Thu
5AM - 9AM
19 February 2026
- E 17–21 knots. Gusts up to 34 knots.
- −2 to 1°C
- UV Index: 0 - Low
- Cloudy
Thu
9AM - 1PM
19 February 2026
- E 18–20 knots. Gusts up to 33 knots.
- −1 to 3°C
- UV Index: 0 - Low
- Cloudy
Thu
1PM - 5PM
19 February 2026
- E 14–19 knots. Gusts up to 30 knots.
- 1 to 3°C
- UV Index: 0 - Low
- Cloudy