Gain a sobering insight into a dark chapter of Vietnamese history with a visit to Phu Quoc Prison (also known grimly as Coconut Tree Prison - Nhà tù Cây Dừa), located near An Thoi town in the south of the island. This site served as a large prison camp, primarily during the Vietnam War (American War), notorious for holding tens of thousands of Viet Cong soldiers and political prisoners under brutal conditions enforced by the South Vietnamese government and their advisors. It stands today as a historical relic and museum.

A visit involves walking through reconstructed prison camp buildings, including detention areas, watchtowers, and chillingly realistic exhibits depicting the harsh life, torture methods, and resilience of the prisoners held here. Displays include graphic mannequins reenacting scenes, historical photographs, and artifacts recovered from the site. The infamous "tiger cages" used for solitary confinement are also recreated, offering a stark portrayal of the inhumane conditions.

While Phu Quoc is primarily known for beaches and resorts, visiting Phu Quoc Prison offers an essential, albeit deeply unsettling, historical perspective often missed by tourists. It requires visitor discretion due to the graphic nature of some exhibits. Understanding this site provides crucial context to the island's past beyond its idyllic shores and is a significant hidden gem for those seeking a deeper comprehension of the Vietnam War's impact. An entrance fee is usually required.