Of course, it can happen that you do not know beforehand what you would like to do during your stay. If this is the case, there are enough things to do in the area and you can take the day as it comes. A pleasant day's shopping in Eindhoven, a visit to one of the museums in the area or a refreshing walk in one of the surrounding woods.
There are also a number of possibilities for a day out with the children: The Efteling, Het Land van Ooit (The Land of Ever), the Beekse Bergen Safari Park and more.