structural:summarization, stylistic:style_transfer, information:extraction
Geography

Panamá is located between the Pacific Ocean and tropical rain forest in the northern part of Panama. The Parque Natural Metropolitano (Metropolitan Nature Park), stretching from Panama City along the Panama Canal, has unique bird species and other animals, such as tapir, puma, and caimans. At the Pacific entrance of the canal is the Centro de Exhibiciones Marinas (Marine Exhibitions Center), a research center for those interested in tropical marine life and ecology, managed by the Smithsonian Tropical Research Institute.

Tropical forests around Panama are vital for the functioning of the Panama Canal, providing it with the water required for its operation. Due to the canal's importance to the Panamanian economy, tropical forests around the canal have been kept in an almost pristine state; the canal is thus a rare example of a vast engineering project in the middle of a forest that helped to preserve that forest. Along the western side of the canal is the Parque Nacional Soberanía (Sovereignty National Park), which includes the Summit botanical gardens and a zoo. The best known trail in this national park is Pipeline Road, popular among birdwatchers.

Nearly 500 rivers lace Panama's rugged landscape. Most are unnavigable; many originate as swift highland streams, meander in valleys, and form coastal deltas. However, the Río Chepo and the Río Chagres, both within the boundaries of the city, work as sources of hydroelectric power.

The Río Chagres is one of the longest and most vital of the approximately 150 rivers that flow into the Caribbean. Part of this river was dammed to create Gatun Lake, which forms a major part of the transit route between the locks near each end of the canal. Both Gatun Lake and Madden Lake (also filled with water from the Río Chagres) provide hydroelectricity to the former Canal Zone area. The Río Chepo, another major source of hydroelectric power, is one of the more than 300 rivers emptying into the Pacific.