Original: Other important rivers and bodies of water in this water-rich province include the Nieuwe Maas , Nieuwe Waterweg , Oude Maas , Haringvliet , Hollands Diep , Oude Rijn and Hollandse IJssel .
Simplified: The most important rivers and other bodies of waters are Nieuwe Maas , Nieuwe Waterweg , Oude Maas , Haringvliet , and Hollands Diep .