Pantai Punai is a stunning coastal geosite known for its unique Adamelite, a type of I-type granite that does not carry tin. This granite is made up of quartz, feldspar, plagioclase, biotite, and hornblende, along with secondary minerals such as actinolite, carbonate, limonite, and iron oxide. It is an important site because it represents I-type granite in its adamelite form, offering visitors a glimpse into the region’s fascinating geological history.
Just off the coast lies Pandan Island, which shares the same geological composition, creating a natural extension of the coastal landscape. The combination of granite formations, coastal scenery, and the surrounding marine environment makes Pantai Punai a visually striking and educational location for both tourists and geology enthusiasts.
Today, Pantai Punai is not only a place of scientific interest but also a popular natural tourist destination. Visitors can enjoy exploring the rocky coastline, observing unique rock formations, and taking in the serene views of the nearby Pandan Island. Its accessibility and natural beauty make it an ideal spot for photography, sightseeing, and experiencing the geological richness of Belitong.