Got the fast flying ferry from amsterdam (€8.60 return + €4 bike pass) and found park quite easily and very quickly (5-10 mins) with a cycling map. Signs were few and far between so map essential.
There were good wide cycle paths throughout the park and lots of nice scenery. The path over the dunes to the beach is pretty hilly compared to the rest of the terrain but the beach is long, sandy and well worth a visit.
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