Sometimes known as 'the secret railway' Hampton & Kempton Waterworks Railway is the only operational steam narrow-gauge railway of its kind within the M25 and has a fascinating history for you to discover. Train lovers of all ages will enjoy a ride on this historic railway which played a part in supplying clean drinking water to London in the early 1900s. Want to know more? Kempton Steam Museum is right next door so you can drop by and explore after your journey.