Ryan Sandes describes the route this way, at https://13peaks.co.za/

This route completes the entire Sheffield Supertram network in a single, continuous effort, following the Tram Train, Yellow, Blue, and Purple routes in full. The journey starts at the Tram Train northern terminus at Parkgate, before running south-west to Meadowhall, continuing through the city centre via Cathedral, and out to Hillsborough. From there, the route returns through the city centre and continues south-east to the Halfway terminus via Herdings Park, completing the full network end to end.