As a tourist guide you could:
work in one place such as a castle or historic house
accompany groups on day tours to a number of interesting places or sites.
You would escort groups around the site or area, and give information about its history, purpose, architecture or other points of interest.
Guided tours could include:
sightseeing tours
tours for special interest groups
themed walks.
You could also work as a driver guide taking small groups of tourists on guided tours around places of interest in a car or minibus.