Train spotting
Train spotters are fans of trains. You can see train spotters at many train stations. They stand at the end of the platform and spend hours writing down the numbers of the trains. Serious train spotters travel thousands of miles by train trying to collect the number of every train in Britain. Some train spotters prefer old-fashioned steam trains.
Michael Vaughan-Rees, Geraldine Sweeney, Picot Cassidy: In Britain. 21st Century Edition, Cornelsen Verlag, 2000, page 71