Pemuteran Village in Bali was once a poor fishing village, its reefs and coastlines almost totally wiped out through the escalation in destructive fishing practices involving dynamite or cyanide. But thanks to a community project to replant its reefs, it is now a thriving ecotourism destination. Since 2000, villagers have planted more than 70 ‘bio-rocks’ across an area of two hectares, whose chemical structure allows for an accelerated growth rate (up to 2-10 times faster) amongst coral saplings. Their effort means Pemuteran is now home to the largest Bio-rock coral reef nursery and restoration project worldwide. The new reefs are also much more resilient - corals on biorocks have up to 50 times higher survival rate than normal reefs from the most severe high temperature bleaching events. They have even turned the tide on Pemuteran’s severely eroding beaches - because the waves have been slowed by the presence of these new reefs, the beaches have actually grown by 15 metres of beach in the last few years.