I finished reading this to my 10-year old daughter a couple of weeks ago. It is a wonderful read - much deeper and more detailed than the film. The writing is beautiful and the characters are convincing and varied. Adams creates a believable rabbit culture with its own mythology, rather like Tolkien did but on a smaller scale. I particularly like the way that most of the rabbits have great difficulty in understanding some things which humans find obvious, like the idea that a piece of wood can be used to float across a stream.
Next spring, one sunny morning, I am going to wake Zoe up early and together we will catch a train to Newbury. From there we will take the Basingstoke bus as far as Kingsclere, and then we will walk up onto Watership Down and there I will point out to her the places mentioned in the book. We will walk on along the ridge to Ladle Hill and, if there is time, cross the valley to Beacon Hill on the opposite side and then look down on Highclere Castle.