From Otterlo you could easily reach the following attractions/museums:

• Nederlands Tegelmuseum, Kroller Muller Museum, Museonder, Wijnhoeve De Hoge Veluwe, Huifkarcentrum Wouter Hazeleger, Otterlo
• Infantry Museum / National Reserve Corps Museum, Harshman
• Dutch Open Air Museum, Burgers Zoo, Dutch Water Museum, Arnhem
• Het Bijenhuis, Wageningen
• Poultry Museum, The Ancient Craft Museum, Barneveld
• Apenheul, Familiepretpark Koningin Julianatoren, Paleis 't Loo, Veluwse Steamtrain, Petting zoo/paradise Malkenschoten, Apeldoorn
• Dolfinarium, Harderwijk
• Visiterscenter Nature Veluwe, Ede
• Wildlifepark Het Aardhuis, Hoog Soeren

Actually too much to put here!! Inform at the local VVV (Bureau of Tourism) for more information. Or have a look at www.recreatiekrant.nl