All bookings are now done via the Class Manager Online System or App. 

If you do not have an account please click : 

https://app.classmanager.com/portal/kernow-hydro-6352/register

If you already have an account : 

https://app.classmanager.com/portal/kernow-hydro-6352/login

You can download the app from Google Play or the App Store or login via your web browser. The web browser has much more options visible.