To reach the uphill venues from downhill you have two alternatives.

The lazy way is to take the Walk and Ride Shuttle bus from Silver Street (bus stop just round the corner from the Works) to Castle Square.

If you want a bit more exercise you can leg it up Steep Hill. The route from The Works is fairly straightforward going roughly northerly up High Street, taking the right-hand fork into The Strait, then continuing up Steep Hill to Castle Square, a total distance of about half a kilometre (just over 500 yards in old money) and some elevation. From here you can turn right to the Minster Yard, as shown on the map, or continue straight on for the other venues.