Surigao del Sur is a province of the Philippines located in the CARAGA region in Mindanao. Its capital is Tandag City and borders Surigao del Norte to the north, Agusan del Norte and Agusan del Sur to the west, and Davao Oriental to the south. Surigao del Sur is located at the eastern coast of Mindanao and faces the Philippine Sea.

The City of Surigao nestles along the northernmost tip of the Province of Surigao del Norte where mountains and hills are prominent indentions throughout the coast. It is bounded on the north and east by the Hinatuan Passage, on the west by the Surigao Strait, and on the south by Tagana-an.

The city has a land area of 245.34 square kilometers and a population of 35,855 inhabitants in 1970. It has an ideal port which is shielded by the Nonoc Islands. It is also connected with good roads to Butuan City in Agusan del Norte, and Lianga in Surigao del Sur.

Climate and Rainfall

       The province falls under Type II of climate in the Philippines characterized by rainfall distributed throughout the year, although there is a distinct rainy season which begins from the month of November and ends in March. However, the climatic behavior of the province for the past few years has shown variations wherein the onset of the rainy seasons no longer occurs on the usual time. Months with low rainfall are from July to October with September as the driest month. Wet months are from November to June with January as the wettest month.

Bislig's main tourist attraction is the Tinuy-an Falls, known as the "Niagara Falls" of the Philippines. It is a white water curtain that flows in three levels about 55 meters high. Its critically acclaimed majestic and unique natural formation was once appeared in the International Travel Magazine. It is also known as the widest waterfalls in the Philippines.

Surfing in Surigao del Sur is widely known and have been one of the local and tourist attractions. This extreme sport can be found in Cantilan and Lanuza. Another sport being played is the skimboarding in which several municipalities has been attracting tourists.