(bats) protected in the park are: Pteropus samoensis (known locally as pe'a voa) meaning "fruit bat of the forests" and Pteropus tonganus locally called pe'afaunua, which means "fruit bat of settled lands"; The roosting place of Pteropus samoensis (with prominent light colored face with brown body) is the canopy of ridge top trees, which roost alone or in small groups and are active during day time with two feeding peaks, the Pteropus tonganus (with black colored face with seal brown body) species roost in large groups (100 or more in numbers in each group) in thick forest habitat, also sometimes seen close to villages. Both species have a wing span of at adulthood, and weigh about 500 grams. The park which is divided into three zones has a network of hiking trails. The National Park Service (NPS) maintains good information system about these trails. One such trail goes up Mount ʻAlava, a high peak within the park rising to a height of . A TV tower exists on this mountain and also the ruins of a cable car station of a long cableway which once ran over Pago Pago Harbor to Solo hill in Utulei. (524m). This cableway, which was the only single-way cable in the world at that time built in 1965, was damaged when a Navy plane attempted to fly under it and was caught by one of the cables, on April 17, 1980, and was permanently put out of commission. The cableway was used to transport the TV technicians to the transmission station. The descent from the peak passes through lovely vistas of the lowlands of the park and the rain forests which abound in several bird species. Another ridge trail runs from Fagasa Pass over a length of , goes through a very steep slope behind the rest fale (hurricane shelter), which is also negotiated through a stairway and further leads down to the serene Vatia village on the coral bay. Natural disasters Hurricanes or tropical cyclones have been frequently striking the Samoan Island for centuries. To monitor and give advance warning of the cyclones, several Observation stations have been established under the U.S. Federal Emergency Management Agency (FEMA), in American Samoa. After the first recorded hurricane (at least in modern times) hit the Samoan islands on February 10, 1966, which was declared a major disaster, "hurricane homes" called as "fale afa" have been built in