Without the Snap Snap excursion last Saturday, I wouldn't have discovered these hidden corners of Singapore -A quarry in the mainland (I've always known there are a few at Pulau Ubin though)A dysfunctional railway track tucked away in a housing estateEager to find out more? Well, I'll let the photos tell the story :PDairy Farm Nature ParkAlong the main tracks, it looks very similar to Bukit Timah