Nebula

I'd been waiting all season for a Northern Ireland run and I'm a bit sad about it not happening but it would have been difficult to do to be fair. They were counting ferry terminals as part of the map but not airports so you'd only really have Liverpool and Stranraer to plan an NI run from, and the ferry iirc takes about two hours which cuts a good chunk out of the hider's head start. There's so few stops here and if you want to film somewhere really scenic that's within walking distance of a train station you'd be left with the north coast and Derry.

Sam and Ben mentioned having Irish citizenship so an all-Ireland season should be pretty feasible, though Adam would technically need two visas even if that's never really enforced. Maybe something like battleships with the county map divided in half.