Sea turtle watching in Con Dao, Vietnam: huddled around a nest, we see a mother lay dozens of eggs – until something goes wrong

• Bay Canh, in the Con Dao archipelago, is considered the most precious sea turtle habitat in Vietnam. Overnight tours allow visitors to watch turtles laying eggs
• Seeing the mother turtle sculpt sand over her newly laid clutch with her back flippers is like watching big leather mitts shape clay on a potter’s wheel