Sinclair continued his work to ensure that tourism development was controlled and that the island’s resources were properly managed. He produced FIDO’s newsletter, MOONBI, and was involved in other publishing projects to improve the island’s management. He has also served as a member of a government committee overseeing the management of the Fraser Island.
Sinclair worked on other conservation efforts as well. He assisted the voluntary conservation movement of South Africa in preventing sand mining in the dune systems of Zululand’s Greater St. Lucia region. He focused on ways to enhance the role and effectiveness of volunteers in environmental protection and worked to improve the protection given to all World Heritage Sites.
Organizing eco-tours from Sydney, Sinclair continued to work to enhance the Australian network of conservation volunteers. In 1998, he organized a canoe trip down Australia’s greatest remaining wild river, the Fitzroy, which was instrumental in a decision not to dam the waterway. For more information visit the John Sinclair Trust for Conservation.