Get involved Events Kop Hill Climb Come and enjoy the historic Kop Hill Climb in the Chiltern Hills, Buckinghamshire for car or bike enthusiasts and families alike. Over 800 amazing cars, motorcycles and children’s soap boxes (if you’d like to enter, take a look here) Entertainment, attractions, and food for all of the family Adult day tickets can be purchased on the gate on the day of the event and will cost £15. Under 16s day tickets will be £5 on the day. Advance adult day tickets are £10 and valid for the Saturday or Sunday. Please purchase two tickets if you wish to come both days. Under 16s tickets are £5. Children under 5 years old receive free admission, meaning a family day out could cost as little as £20 for four people.