In the Netherlands, the legal situation is only slightly different from that in Germany. Indeed, Section 430a¹), Third Book (Minor Offences), Part II (Minor Offences related to Public Order), of the Dutch penal code applies to public nudity, and provides for a fine of at most 400 EUR if someone is, according to the law, “outside the areas declared by the commune for the purpose of unclothed public recreation, in a public place unsuitable for the purpose of unclothed recreation.“ However, according to the judgment by the Court of Justice of the Hague in the Delftse-Hout case, dated 11 July 2014, the place in question needs to be “very clearly unsuitable“ and thus the municipal declaration of appropriate areas is no longer a criterion. Something similar is to be found in a more recent judgment by another court dated 23 January 2017 regarding a nude hike in the nature preserve Horsterwold in the province of Flevoland.
– Source: Recht: NL · Nederland (natury.nl)

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¹) Dutch Penal Code (Inofficial translation to English)

Source in Dutch:
Wetboek van Strafrecht, Artikel 430a