Zwemwater is a free Android app that provides you with a guide to over 800 natural swimming spots in the Netherlands. With an easy-to-use interface, you can quickly find out if a swimming location is safe and clean. The app provides information on the quality and safety of official swimming locations during the bathing season (May 1st to October 1st). All data is collected from water boards, provinces, and Rijkswaterstaat in one place, ensuring you always have the most up-to-date information. The app's map feature and search function allow you to locate swimming spots in your area and check their quality and safety. You can also see the available facilities at each location, such as restrooms, cafes, playgrounds, boat ramps, lifeguards, and nude beaches.

Moreover, the app provides information on how to swim safely and avoid health risks. It also includes a swimwater phone number for further inquiries. Note that the app does not store personal data, and the information is based on government-controlled swimming spots.