Cycling around Singapore. Bishan Park to Upper Pierce and return.

Cycling from Bishan Park to Upper Pierce and back to Bishan Park. Approximately 10 km ride to and fro. Generally flat along the park and once you hit old upper Thomson road, it's quite an uphill ride for about 10 to 15 minutes to Casuarina and then the track along old upper Thomson road track is generally downhill. The return will just be the opposite.