What is the swimming water like? Groenstrand, Ouderkerkerplas? On the water map below you'll see the swimming location in its immediate vicinity. On the right of on this page you will find all information about the current weather, at the bottom of the swimming spots in the area.
 
Open the Water Map for Ouderkerk aan de Amstel in full window
Extended weather forecast for Ouderkerk aan de Amstel (click)
The bathing water quality at Groenstrand, Ouderkerkerplas is good
More information about this swimming location can be found at Zwemwater.nl