Given that much of the country lies below sea level, masterful water management and natural waterways essentially define many of the Dutch national parks.
* **Oosterschelde:** A massive tidal estuary and national park protected by the famous, modern-marvel Delta Works. * **The Wadden Sea:** Bordering several coastal parks, this UNESCO World Heritage intertidal zone is crucial for migrating birds and native seal populations. * **De Biesbosch:** A complex, ever-shifting network of freshwater rivers and creeks formed by the historical confluence of the Maas and Waal rivers.