Training and development
As a qualified tourist guide, you can become a member of a professional body such as the ITG. This may help you to market yourself and to get work.
Once you are a member of a professional body, you would be expected to develop your knowledge by taking part in continuing professional development courses. The ITG has details of courses on their website.
ITG (Opens new window)
Once you have experience you could start your own tour guide company or move abroad and use your skills and expert knowledge elsewhere.