If you are coming from London, take the M40 and exit at Junction 2. Then, take the A355 and follow signs to Chesham. From there, take the A416 and follow signs to Amersham and continue on this road until you reach Chiltern.
If you are taking the train, take the Chiltern Railways line from London Marylebone to Great Missenden and then change for a train to Chiltern.
If you are coming from Oxford, take the A40 and then the A418 to Aylesbury. From there, take the A413 to Great Missenden and then follow signs to Chiltern.
If you are in nearby towns, such as High Wycombe or Beaconsfield, take the A4010 and then the A4128 to Amersham. From there, take the A416 and follow signs to Chiltern.
Overall, the best way to get to Chiltern is by car or by train, as there are no direct bus routes to the area.