Sigcop Cave is located at Progreso Este, boundary of Rizal.  It is approximately a 35-minute-hike from Rizal Tree Park. This cave has a beautiful window that allows sunlight to illuminate the cave. The stalactites are formed like tables and in images of saints.  Relics of broken pots probably used during ancient rituals were found in the site. Source:Official Website of the Provine of Romblon   

Sila Beach is located in Patnanungan, Quezon, Philippines.  Part of the main island of the town of Patnanungan. The beach is brown and gently sloping. Not far from the beach are colonies of corals. At one part of the beach are queer rock formations which look very much like speedboats docked in a marina. Source:Tourism.qzn.ph

 Silaguin Bay is located in San Antonio, Zambales, Philippines. Endowed with abundant marine resources and wild animals, it is one of five coasts soon to be developed into a fish sanctuary. Naturally, an ideal place to visit for scuba diving and snorkeling. Source:Angelfire.com

As you leave the port area and enter the junction at Rizal Boulevard, a quaint-looking white and red building overlooks the sea. Silliman University is one of the oldest institutions in the country built by American Presbyterian missionaries.The hall was built in 1905 as an addition to form an “L” with the original 1901 Silliman Institute. This building is considered as the oldest wooden structure of Eastern Stick Style in the Philippines.  The Ground Floor was built with cast iron columns and metal pan ceiling from the debris of a theater in New York that was being demolished. For many years the Ground Floor was known as the Assembly Hall where most of the social and cultural events of the campus were held including the regular mid-week service and Sunday worship service. Source:South Travels  

Simborio Chapel is located in Plaridel, Bulacan, Philippines.   One of the town’s major attractions is the Simborio Chapel. One of the oldest existing structure from the Spanish era, believed to have been constructed in the 1800s, is said to have been greatly unique from other similar structures because of its remarkably rather low height or elevation. Source:Bulacan.gov.ph

Simmimbahan Cave is located in Alaminos City, Pangasinan, Philippines.  The cave resembles a subway or tunnel. It is consi- dered intact with its unique stone hydrological formations. It is also rich in guano. Source:Alaminoscity.gov.ph

Sinait Church is located in Sinait City, Ilocos Sur Philippines. Sinait Church is popular for tourists, as it holds the much revered 17th century image of the Black Nazarene.  Source: FlyPhilippines.com.ph

Sinapangan Waterfalls is located in Libungan, Cotabato Province, Philippines.  A great place to relax and unwind, Sinapangan Waterfalls is part of the Akir-akir watershed areas. It has an elevation of 15 meters.  Source: Visitmyphilippines.com

Singit is located in Abra, Philippines. Singit is a tall rocky mountain that overlooks the valley of Licuan down below. Local folklore tells the tale that the souls of the deceased passes through this mountain, which is why it was dubbed "Singit" by the natives.  Source: Pinas.ph

Sinking Belltower is located almost a hundred meters away from the St. William’s Cathedral at Laoag City. The tower has sunk to the ground and leans slightly to the north. Source:Travelmart.net 1stphilippines.com