A guy I know was riding around the bike track at the Regatta Centre at
Penrith when he encountered a wire that was strung up at neck height. He
finished up flat on his back with a sore neck, luckily nothing more.
There is some construction work going on there and it happened just near the
construction site.

He has informed the Regatta Centre and the police.

If you going to do a cardiac workout there, it might not be a bad idea to do
a slow lap first.

Ken