My Bristol area one-day Freedom Travelpass, which could only be bought from a ticket office, covers zones A to D within the Bristol area, see.....
https://travelwest.info/tickets-travelcards/freedom-travelpass-bus-rail-passes/ Andy and I made good use of the card travelling a total distance of one hundred and thirty one miles that equates to a cost of just under fifteen pence per mile. This included fifty-seven miles of HST travel on three different Castle sets.