Why go
York is the one big day out from Thirsk that does not need a car at all, which makes it the easiest thing on this whole list to organise. The train takes 16 to 23 minutes. You step off at York station and the first attraction, the free National Railway Museum, is next door. Everything else worth seeing sits inside a 15 minute walk of the platform: the Minster, the medieval walls, the Shambles, the Castle Museum, the river. You walk from the platform and keep walking all day. For anyone travelling to Thirsk without a car of their own, this is the day out to build the trip around.
