This summer my family and I will be renting bikes at our hotel near Sloterdijk station, and plan on biking to Zaanse Schans. I figured that's only about an hour trip on bikes, so I'm trying to add on to our biking day. I'm thinking of biking from Zaanse Schans on to Marken--which according to Google Maps is another hour and 1/2 biking, then back to the hotel, which is another hour and a 1/2. Does that sound accurate? Does that sound like a crazy plan--too much biking in one day? We are all in pretty good shape. If we didn't go on to Marken, is there someplace closer that we could bike beyond Zaanse Schans? Thanks for your help.