Cycling 5

Early Sat morning 6 plus go to Punggol River.
Up and down the river twice.
Should be about 10 km in total.
Manage to maintain average speed of about 21 km/h.

Then back to Serangoon River all the way to Lorong Halus bridge (did not cross bridge), and then back home.

Total about 25km.

Timing more than 1 1/2 hrs, no sure, forgotten.