The name “Tambongon” is believed to be derived from the Tambo plant, which is native to the area. Covering 20 hectares, the lagoon serves as a vital habitat and breeding ground for a variety of marine species. Surrounded by lush mangroves, it is a serene wildlife sanctuary.

Recognized as a marine sanctuary by the Local Government Unit, Tambongon Lagoon offers a peaceful environment perfect for swimming. It is a prime destination for nature lovers and adventure seekers.