Children clambering over big rocks in Forest School Singapore's "Boulder Playground" yesterday.

The school near Rifle Range Nature Park runs regular programmes for children aged three to 12 where they are taken into the forest nearby and allowed to go anywhere and do anything, within safety boundaries.

Activities during the school's weekly three-to four-hour sessions include venturing and exploring along a forest trail, wading in a freshwater stream, learning about nature and craftwork.