Thanks Wayan! I did this run starting in the forest based on your recommendation....just walked out of Terminal 1 then followed the roads. I had to cross a couple of one-lane access roads, but nothing major. Once in the woods, the trails are well maintained & numerous. I only saw 2 people in my first 30 mins. Trails are laid out in a grid, so getting lost seems to be quite difficult. Great 2 hr meandering run.

I just took the train back to the airport for 4 EUR.