Ocean liner SS Rotterdam was built in Rotterdam in the late 1950s. Now permanently moored, it functions as a conference centre and hotel, with 254 small but ship-shape cabins; be warned that some have no portholes. The ship is a long way from the city centre; get here on bus 77 from the Rijnhaven metro or by watertaxi.
There are a number of eating and drinking options on board, as well as a wading pool to keep toddler guests happy. Parking costs €15 per day.