Barangay Tambisan is a coastal community located in the municipality of Siquijor, Siquijor, with a population of 762 as of 2020.

The area is known for its rich marine biodiversity, making it a popular spot for diving enthusiasts. Divers are attracted to its vibrant coral reefs, large gorgonian sea fans, and diverse marine life, including schools of reef fish, anemones hosting various species of anemone fish, and numerous invertebrates inhabiting small caverns and crevices.

Historically, Siquijor Island was first sighted by Spaniards in 1565 during Miguel López de Legazpi’s expedition. They named it “Isla del Fuego” (Island of Fire) due to the eerie glow from swarms of fireflies in the molave trees. Before Spanish colonization, the island was known as “Katugasan,” derived from “tugas,” the local term for molave trees, which were abundant at the time.

Over the years, Barangay Tambisan has maintained its coastal charm and continues to contribute to Siquijor’s cultural and economic landscape. The community’s connection to the sea remains strong, with fishing and tourism playing significant roles in the local economy. The preservation of marine ecosystems and traditional practices reflects the residents’ commitment to sustaining their natural heritage.