Lovely day out, we drove directly to Hobbiton, where you catch a bus which drops you off at set.
You can catch a bus from Matamata. Although a little expensive, this is a thoroughly enjoyable day with very knowledgable tour guides. Fortunately we went when it was still green :).It is so well done, even down to little clothes hanging on clotheslines outside the houses. There are umbrellas available if it is raining. The tour ended with a drink at the Green Dragon Tavern.
We were a group of three adults, one senior citizen (76), a seventeen, thirteen and an eleven year old and every one of us enjoyed it and would highly recommend visiting!