We did the Disneyland Park tour last year, and it was more interesting than I had even hoped!
They both cost €20 per person (under 12s free), with a 25% discount for Shareholders Club members. The tours take place at various times per day, and can be booked in advance via telephone, or at City Hall when you are there. Each tour will be in the language nominated by the first party to book that particular time slot - we had a Dutch family with us, but they will have been told when they booked that this tour would be in English since we had already booked and chosen an English speaking Guide.
The tour starts at City Hall, goes through the entrance area, under the station and eventually up Main Street USA. Every tour follows a common theme, but they are also free-form in nature, in terms of any buildings / rides / lands, etc. that you might wish to focus on more, or ignore completely if you want.
You don't go on rides or anything, but can find out lots of behind the scenes, 'insider' snippets. The two hours passes quite quickly because it's so full of interesting info and things to look at that you may not have noticed before!
Highly recommended
