BAGUIO CITY: The Provincial Tourism Office (PTO) of Mountain Province is inviting mountain climbers, tourists, nature lovers, sports enthusiasts, environmentalists and visitors to join the mountain trekking to the legendary Mount Kalawitan set on April 2. Part of activities for the Lang-ay Festival celebration, scheduled on April 1-9, the trek aims to further boost the province as tourism destination. Mount Kalawitan is the fourth highest mountain in Luzon at 2,714 meters above sea level. It abuts the towns of Bontoc and Sabangan in Mountain Province and Tinoc in Ifugao. Mount Kalawitan maintains a forested peak, a sanctuary to diverse wild life, and also serves as the source of water flowing to the various tributaries of the mighty Chico River. Roger Sacyaten of PTO said trek organizers will collect a P715 registration fee per participant to cover environmental and tour guide fees, tokens and transportation fare from Bontoc to entry point (Talubin) and exit point (Sabangan) to Bontoc. Trekker-participants are advised to wear appropriate hiking gears, bring food, beddings and other necessities.