There is so much to see in the Veluwe! Take this route: forest, heath, nice villages, the Aardhuis, Landgoed Staverden ... you will still be short of time.
From here you will soon cycle along the edge of the Houtdorperveld, one of the largest heathlands in the Netherlands. You have beautiful panoramas. In some places the horizon seems to be tens of kilometers away. A little further you have to get off at the Aardhuis. This former hunting chalet of Willem III is now a museum. Outside you can see wild boars!
The Veluwe is more than a forest: on the Elspeetse Heide you have a beautiful view over the plain from the saddle. Further on you will pass Elspeet, with its characteristic old farms. Staverden is also a beautiful place: it received city rights in the thirteenth century and is therefore one of the smallest cities in the world. It should have been a city, but that plan fell through. Fortunately, now it is a wonderfully quiet village.