Zandvoort
Zandvoort is only 9 km (5½ miles) from Haarlem and has the area's biggest and best beach (a favorite of sun-starved Amsterdammers). It can get crowded, but if you wander south for 10 minutes, you can find isolated spots among the dunes; after about 20 minutes, you come to the nude (in places, gay) sunbathing beach.
