DakPark Rotterdam is a 1.2km stretch of parkland that is quite literally built on the roof of a row of shops in Marconiplein.
It has an excellent playground (Speeltuin BOTU) with a huge slide, a climbing frame/cubby house, a sandpit and a very good water play area. Please note, it is built on quite a steep slope, which can pose a safety risk, particularly for younger children.
DakPark also has a water feature with small fountains, perfect for kids to splash around in on a hot day.
The water feature is next to a lovely Mediterranean style garden, and the Stichting Dakpark periodically runs gardening workshops there.
Entrance is free, and it is walking distance from Marconiplein Station, with easy parking accessible close by.