With tired legs Julie and I elected to just walk around blackman park and find out if the a particular track was actually fenced off, or whether it was just taped off. turned out it is hte latter which is good news for anyone joining a few tracks together (as long as you don't mind the asbestos risk). While we were walking there were plenty of runners coming past so obviusly they were cool with it.
With Julie, parking at the athletics track then heading over to Magdala park and on to filed of mars, then futher on to a turnaround point after 1/2 an hour. On the way back it started to pour with rain.