The Hundred Islands National Park is the first Philippine national park and a protected area located in Alaminos, Pangasinan. The islands, totaling 124 at low tide and 123 at high tide, are scattered in Lingayen Gulf covering an area of . Only four of them have been developed for tourism: Marcos Island, Governor Island, Quezon Island, and Children's Island. Geology The islands are believed to be about two million years old. There are actually ancient corals that extend well inland, in an area previously comprising the seabed of an ancient sea. The lowering of the sea level have exposed them to the surface. The peculiar "mushroom-like" shapes of some of the islands were caused by the eroding action of ocean waves. History The national park was created by Presidential Proclamation No. 667, covering an area of and signed by President Manuel L. Quezon on January 18, 1940, for the benefit and enjoyment of the people of the Philippines and known as the Hundred Islands National Park (HINP). The Republic Act No. 3655 signed on June 22, 1962, created the Hundred Islands Conservation and Development Authority (HICDA), for the conservation, development and management of HINP. The park including Lucap Bay was transferred from HICDA to the Philippine Tourism Authority (PTA) by virtue of Section 35 of Presidential Decree No. 564. On April 27, 1982, under Proclamation No. 2183, the national park including Lucap Bay and its foreshore areas, beginning from Sitio Telbang to the east to Sitio Recudo to the west, were declared as a Tourist Zone and Marine Reserve under the control and administration of the PTA. Subsequently, under the Presidential Proclamation No. 2237 enacted on November 6, 1982, the parcels of land reserve for the Marine Fisheries Multi-Purpose Farm (created under Proclamation No. 1282 of June 21, 1974) were withdrawn and were also placed under the control and supervision of the Tourism Authority for development purposes. The Executive Order No. 436 signed by President Gloria Macapagal Arroyo on June 21, 2005, transferred the administration, management, maintenance, and operation of the whole Hundred Islands National Park (HINP), including all the activities, facilities, and improvements thereafter, from the Philippine Tourism Authority (PTA) to the city government of Alaminos, Pangasinan in pursuit of Republic Act No. 7160, otherwise known as the Local Government Code of 1991, which encouraged the transfer of power and authority from the national government to local government units,