Samarai Island is located in the China Strait (length 7 km, width 1 km), off the southeastern tip of the New Guinea Island (mainland PNG).
- The island has a total area of 0,29 km2 (0,11 ml2) or 70 acres (29 ha), length of 0,8 km (0,5 ml), width of 0,4 km (0,25 ml) and population around 500. This ranks it among the country's most densely populated areas.
- Samarai is a historically significant island port between Australia and East Asia. At its height, the town of Samarai was the PNG's second largest - after Port Moresby.
- In January 1942, the port town Samarai was destroyed during WW2 (1938-1945) by the British who feared a Japanese occupation.
- In 2006, Samarai was declared a National Historical Heritage Island.