Boa-Boahan is a colorful cultural festival held every 2nd of May at Nabua, Camarines Sur. This festival is of pagan origin for fertility and thanksgiving. The dialect alinsangan is a word that describes the characteristics of the early settlers of Nabua.
Introduced in 1975 to re-enact a legend of how the town's early settlers survived the big flood that swept their area before the coming of the Spaniards. A big celebration is held in thanksgiving to recount the Nabua Chieftain do rituals feeding only on young coconuts. The coconut embryos is said to make the town folks fertile.
The highlight of the affair is the re-enactment of the 13th century pagan rites which is enriched by colorful costumes. The rite is dramatic revival of the traditional boa feast during the pre-Spanish era where pagans believed that the chains of coconut embryos called "Boa" are offered to their old deities.
