We visited the Crannog Center during our stay in Scotland in August 2013 and had a great time there. You first go through an exhibition, which gives you a good first impression both of live during the iron age and the archaeological work done on this site.
You then visit the crannog itself, which is a very interesting building. Our guide Dirk showed us around in the large room and talked enthusiastically about their research, the crannog people and the culture of the iron age. It was very informative and at the same time entertaining.
He than showed us some cultural techniques of the iron age, which are also researched on this site with experimental archaeology. It is really a hands on experience, as you are allowed to make fire, work with stones and wool for yourself.
There is a nice little shop and a cafe as well, so you can easily spend two ours or more exploring the culture of the crannog people. The important research done here is greatly underfunded, so we had absolutely no problem paying the entrance fee - compared with an evening at the cinema or other sites it is not to high anyway. I could well imagine that it is great fun to go there with kids as well.
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