Not sure if you're asking about specific accommodation there, which I'm afraid I can't help you with, but the Scheepvaartmuseum on the Kattenburgerplein (waterside, pretty central and near the main Centraal railway station) is well worth a visit. They used to do tours in English and could probably help you with boat trips and possibly accommodation. Also, if it's still going, Werf 'T Kromhout, on the Hoogte Kadijk, (again, central) was a fascinating little museum with various marine engines and artefacts. They have/had a big single which they used to start for visitors. If you get thirsty, there's a great brewery with bar (Brouwerij t'IJ) at the end of the Hoogte Kadijk, about five minutes walk from the Kromhout museum.
If you're into proper boats which, as I see you own Fulbourne, I imagine you are, almost anywhere on the basins around the main station will get your juices flowing (I'm not referring to the ladies who tend to ply for trade around the station), what with the barges and yards etc. Go out a bit further, onto the Noord Zee canal and there'll be even more, plus large cruise and commercial ships. You won't know where to look next! If you fancy a run out and you've time, there's a cracking maritime museum in Sneek, in Friesland. The VVV is the Dutch tourist office, again next to the Centraal station.
Hope you enjoy yourselves.