★ 8.5
★ 6.3
★ 6.5
★ 6.9
★ 0.0
★ 6.0
★ 5.8
★ 6.7
★ 7.8
★ 7.0
★ 8.3
Permaculture teacher Geoff Lawton designs and builds a dam and water harvesting system on a farm.
