I have been using Zwift for a while and I have been wondering about sharing this idea for a challenge.
My idea is for people to ride the longest possible route you can on WATOPIA without using the same road or track twice. You can start at whatever point you like. Once you have used a track or road you cannot use it again in any direction.
Probably use the desert, the southern coast, then through the jungle and up the epic KOM reverse and then go back towards Italian villas and eventually downtown.
You could probably go a bit further still but that would be a start.
This is the longest route I could come up with off the cuff. 90.5km long, 1954m of climbing. The new Mayan KOM route might be slightly longer, but the ZwiftMap tool doesn’t have that available to select just yet.