Roughly 80% of the land area in the island chain is part of Con Dao National Park, which protects Vietnam’s most important sea-turtle nesting grounds; the main nesting season is June to September. Sadly, monitoring operations by park rangers have been scaled back in recent years and turtle-egg poaching has consequently mushroomed. Other interesting sea life around Con Dao includes the dugong, a rare marine mammal in the same family as the manatee.