This book talks about lessons learned from Telapak’s field experiences from 1999-2004 in compiling data and developing collaborative learning process with the fishermen who are actors in destructive fishing in Indonesia. Telapak, in collaboration with a number of NGOs conducted field surveys that found many practices of blast and cyanide fishing. It then worked with local communities towards community based management. Lack of integrated policies have resulted in over exploitation of resources. Training for field implementation have been done to develop simple plans of coastal and marine management.