Been there a few times. Its a nice harbour and very protected. Try not to get there too late as it fills up when the weather's is nice. Shops are a short walk around the back of the harbour.

Berths outside the tidal locks was fine opposite to some info from Imray pilot books. Marina a bit far from the beautiful parts of the town. Old town worth a visit, great restaurants.

Perfect stop before or after the passage of the Nose Gray

Boulogne old town is beautiful and definitely worth a visit. There is also a Carrefour not too far from the marina. As all the guides say this is mainly a fishing port and the marina (outside lock) has a number of small finger pontoons available which were challenging to berth into in high winds with a 46ft boat! The marina office isn’t manned full time, but were helpful when there and the facilities were clean and modern. So while the marina may not be picturesque, the fortified old town is definitely worth the visit!