This is a one-day multi-zonal ticket giving unlimited travel on both buses and rail covering eight separate areas in north Wales defined by Angelsey, Conwy, Denbighshire, Flintshire, Gwynedd (2 zones), Wrexham & Chester combined and the route between Machynlleth and Aberystwyth.
The ticket also includes bus services within the respective zones. Routes shown outside zonal boundaries are included in the availability for the adjacent zone.
The Ffestiniog & Welsh highland Railway may (or may not) offer discounts, you will need to contact them for details.