Jachthaven De Noord Aa is a marina with more than 100 berths situated in the small watersports village of Hoogmade, near Leiderdorp in South Holland. Berths range from 6 to 11 metres in length, and the marina offers both summer and winter storage.

From here, boaters can head directly onto the Kromme Does, with the Wijde Aa and Braassemermeer close by and reachable without passing through any bridges. The marina is a permanent-berth facility and does not accommodate visiting or transit boats.

The surrounding village has restaurants and a supermarket, and private parking is available on site. Leiden, Noordwijk, and Katwijk are all easily reached by bicycle from this location.