This is Waterkaart Live, the Water Map of the Netherlands. With all waterway characteristics, buoys, live bridges and locks: opening times, telephone numbers and VHF channels. Shipping messages and route planner.

The app really is LIVE and contains hundreds of current water levels, tidal curves, the weather at sea and in your area, water depths, data from KNRM stations and the water quality of countless Dutch bathing places. And the current notices to skippers (NtS): are there any obstructions on your route? You know it now. Always up to date.