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
09 April 2026
- SE 4–9 knots. Gusts up to 20 knots.
- Increasing from 5 to 9°C
- UV Index: 0 - Low
- Partly cloudy
Thu
9AM - 1PM
09 April 2026
- SE 6 knots increasing to 9 knots.
- Increasing from 9 to 17°C
- UV Index: 1 - Low
- Cloudy
Thu
1PM - 5PM
09 April 2026
- SE 8 knots veering S 8 knots.
- 17 to 19°C
- UV Index: 3 - Moderate
- Cloudy