Read the instructions on the left then scroll down the page a bit until you come to the Preparation, Tours and Expeditions section.
Some words are in green.
These areas are hyperlinks , places from where you can 'jump' to other places on the Internet. Visitors are most welcome to use the lessons on this site but you will need to be aware that they were initially conceived for internal use only. Please note that earlier versions of Internet Explorer, and current and earlier versions of Netscape and other browsers will not support all of the elements coded here and on a few occasions there may be display problems. If you do experience problems with any part of this site then I would be very happy to hear from you and once I have completed all the lessons, I will then set about improving the site in an attempt to make it accessible to all.