Tree Top Walk @MacRitchie Reservoir

Today is a gathering for my group of ex-classmates - 15km walk in the reservoir park/reserve. It lasted nearly for 4hrs, phew.. long walk, eh? No, we did not run as the terrain is ocassionally steep and with uneven surfaces which made running difficult; and it's a bloody 15km distance! Ha.. luckily the weather is very good and we did not get sun burnt.. no lotions nor caps required :p Bascially it's just a long walk, while we talk to one another to catch up the old times (remembering how we used to go there for our school's annual cross country run-walk). We saw many small gibbons but we did not feel them since it is not encouraged in the park..