I've been getting into a new mode of touring, partly due to lockdown rules. Overnight stays with Vrienden op de Fiets are out. So instead of overnighting, I simply leave my bike at a train station at the endpoint of the day's tour. Then return another day to continue the tour. Parking is always available at stations, usually secure, often sheltered from the rain. I tried this approach along the North Sea coast last summer with great success, from Amsterdam going straight west to Zandvoort beach, then heading north in stages: Beverwijk, Castricum, Heiloo, Alkmaar, each station an easy 5-10km ride to a fabulous beach. Then I rode back along an alternate route with different beaches.
This time I tried the park & tour method in central Netherlands, and again it worked brilliantly.