Zwift is an popular online training app which allows riders to cycle on virtual routes with the potential to mimic the difficulty of the terrain. There are a number of How To videos here to begin your set up, one of which is embedded below.
Under-16s can use Zwift for free, though they’ll need to be verified by a parent or guardian which can take a day or so to confirmed.
In order to join the group rides, ensure you are set up ready to go and logged in at least 5 minutes prior to the start time. Select the correct “World” and click “Ride”. A few minutes before your ride a notification will appear telling you that your group ride is about to start.