Beautiful bike lane!! I am soooo jealous of your cycling infrastructure.

He's a good boy He just wants to see people.

I see he's standing on what looks like dirt? The fence is high but somehow your little escape artist can get close to the top? I see a landscape project in your future Plant some things there that might discourage his jumping or at least give him quite the hedge to hurdle.

Barbed wire would be so ugly but climbing roses, hybiscus, citrus .... not sure what grows well there but there have to be lots of beautiful plants that could bloom, possible thorns, and give your little fellow an attractive deterent.