Houghton Regis
Whetstone
Welwyn Garden City
Watford
Hatfield
Saint Albans
Stevenage
Luton
Stevenage
Potters Bar
Luton
Holywell
Watford
St. Albans
London
Potters Bar
Welwyn Garden City
St. Albans
St. Albans
St Albans
Watford
Watford
Watford
London
Luton
Whipsnade
Panshanger
Dunstable
Dunstable
Luton
Luton
Welwyn Garden City
Welwyn Garden City
Welwyn Garden City
St. Albans
Stevenage
Hemel Hempstead
Watford
Luton, Bedfordshire
Luton