Normaly I go from my house, past the race course, onto Swartkoppies and just keep going. On sunday we when a little further and took the old Vereeniging road until the Tjunction. Averaged 27km/h over the 72km.
when I just do Lido and back, it's 42 km and I normaly avergae close on 30km/h.
It sounds fast, but believe me it was not. I think it has something to do with the tail wind on the first 35km.
Would be cool if you could join me, I'm always keen for more cycling partners.
B.T.W. for hill training try old Alberton (aka Alberton North). I normally pick a hill and go up and down it until I cant anymore. My favourite is the one past Alberton Hardware, all the way to the top.