Pakil’s Turumba is known as the largest and longest religious celebration of its kind in the country, it is even immortalized in artist Kidlat Tahimik’s 1983 short film "Turumba." The whole festivity is aggregately called Pistang Lupi held on specific dates for seven months. This is a special time devoted to the observation of seven key novenas corresponding to the seven sorrows of the Nuestra Señora de los Dolores, before climaxing into the religious event that it is. The first "Lupi," also termed Biyernes de Dolores, was observed last April 14, Friday being the day when the image of Nuestra Señora de los Dolores was seen floating in Laguna de Bai. Successive "Lupis" are labeled accordingly: Pistang Martes, Pistang Biyatiko, Pistang Biyernes, Pistang Linggo, Pistang Pag-Akyat, Pistang Pagpanaog. http://www.ncca.gov.ph/about-culture-and-arts/articles-on-c-n-a/article.php?i=24&subcat=13