Masbate Island in the context of Burias (island)

The Samar Sea is a small sea within the Philippine archipelago, situated between the Bicol Region of Luzon and the Eastern Visayas.

It is bordered by the islands of Samar to the east, Leyte to the south, Masbate to the west, and Luzon to the north. The sea is connected to the Philippine Sea to the north via San Bernardino Strait, to Leyte Gulf to the southeast via San Juanico Strait, to the Visayan Sea to the southwest, and to the Sibuyan Sea to the northwest via Masbate Pass and Ticao Pass. It contains Biliran Island, the islands of Almagro, Maripipi, Sto. Nino, Daram, and Tagapul-an.

Masbate, officially the Province of Masbate (Masbateño: Probinsya san Masbate; Tagalog: Lalawigan ng Masbate), is an island province in the Philippines located near the midsection of the nation's archipelago. Its provincial capital is Masbate City, the most populous in the province. The province consists of three major islands: Masbate, Ticao and Burias.

Masbate is at the crossroads of two island groups: Visayas and Luzon. It is politically part of Bicol Region in the latter. However, from a bio-geographic and socio-ethno-linguistic perspective, Masbate is grouped in the former.

The Philippines is an archipelago that comprises 7,641 islands, and with a total land area of 300,000 square kilometers (115,831 sq mi), it is the world's fifth largest island country. The eleven largest islands contain 95% of the total land area. The largest of these islands is Luzon at about 105,000 square kilometers (40,541 sq mi). The next largest island is Mindanao at about 95,000 square kilometers (36,680 sq mi). The archipelago is around 800 kilometers (500 mi) from the Asian mainland and is located between Taiwan and Borneo.

The Philippine archipelago is divided into three Island groups: Luzon, the Visayas, and Mindanao. The Luzon islands include Luzon itself, Palawan, Mindoro, Marinduque, Masbate, Romblon, Catanduanes, Batanes, and Polillo. The Visayas is a group of islands in the central Philippines, the largest of which are: Panay, Negros, Cebu, Bohol, Leyte, Samar, Siquijor, Biliran, and Guimaras. The Mindanao islands include Mindanao itself, Dinagat, Siargao, Camiguin, Samal, plus the Sulu Archipelago, composed primarily of Basilan, Sulu, and Tawi-Tawi.