# "Nationaal Beschermde Gebieden (CDDA)" OGC API > Documentation and API endpoints for the [OGC API](https://ogcapi.ogc.org/) involving the "Nationaal Beschermde Gebieden (CDDA)" dataset hosted at https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1. ## Core API Documentation - [Landing page](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/?f=md). - [OpenAPI spec](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/api?f=md), also available in [JSON](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/api?f=json). - [OGC Conformance declaration](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/conformance?f=md). ## Collections - [List of all collections available in this API](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/collections?f=md). ### Collection: cdda - [View Collection Details](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/collections/cdda?f=md) - [View Features/Items](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/collections/cdda/items?f=md). OGC API Features. Use "next" link to paginate through the features. - [View Schema](https://api.pdok.nl/rvo/nationaal-beschermde-gebieden-cdda/ogc/v1/collections/cdda/schema?f=md). OGC API Features part 5 "schema".