The Masungi Georeserve is a conservation area in the rain forest of Baras, Rizal, just 30 miles from Manila. The landscape is a mix of jagged limestone rock formations (the reserve’s name comes from the word masungki, which means "spiked"), lush woods, and caves. There is a unique guided nature hike through this terrain that includes rope courses, suspended bridges, steps, and hanging rest areas. Taking around three to four hours to traverse, the trail does not need any special hiking skills—but does require that you be in decent physical condition. Scaling the peaks rewards visitors with breathtaking views of the Sierra Madre mountain range on one side and the Laguna de Bay lake (the largest in the Philippines) on the other. The rest spots are spectacular: The Sapot is like a huge spiderweb you can walk on, and there’s a shelter called the Patak dangling from a hanging bridge as well as a giant hammock called the Duyan. Reaching one of these spots in the late afternoon might just reward you with a great sunset. Rain-forest weather is hot and humid, so the best time to go is during the cooler months of November to February. Advance reservations are required.