One of my clients has asked me to do a website for his son who is about to row across the Atlantic for a fundraiser.

One of the things we would like to do is display where they are using Google Maps (or similar). They will have GPS equipment on board and will possibly also have internet access.

Does anyone know how to use Google Maps to automatically show their position? And maybe even their 'path' from the start of the journey?

Please bear in mind I'm not a programmer but a web designer so I can do the basic stuff but not the advanced API programming if needed...