Bharathapuzha, also known by the name of Nila, is the second longest river of Kerala. Over the years, this river has come to represent a culture specific to Northern Kerala. Bharathapuzha is believed to have contributed to the growth of a culture unique to Malabar and appears in the writings of many regional writers.
Ponnani has a tidal mouth where Bharathapuzha meets Tirur river and this place seasonally houses thousands of migratory birds. This is an ideal location, not just for ornithologists but for amateur birdwatchers. Flocks of birds flying past the river during the summer months is a sight no traveller would want to miss.
The 209 km stretch of Bharathapuzha carries not just streams of water but torrents of culture and heritage. Though summer heat dries this river, generous monsoons replenish its streams with water and its banks with greenery. Be it summer, monsoon or winter Bharathapuzha delights a traveller with its grandeur and glory.
Biyyam Kayal or Biyyam Lake is a chief attraction in Ponnani and draws hundreds of travellers every year. It is a green fringed waterway situated in proximity to Ponnani town. What attracts visitors to this lake is the boat race held here annually during Onam season. Visitors can watch this race from pavilions built for spectators.
Approximately two dozen country boats participate in the race which truly is a delightful sight. Water sports facilities and other entertainment activities are available in Biyyam Kayal to engage the travellers. A boat race is conducted here on the third day of Onam celebrations every year, which is also a prime attraction of the lake.
Visitors can also get a glimpse of the beautiful hanging bridge built across Biyyam Kayal. Comfortable accommodation is available for tourists as there is a rest house equipped with all modern amenities on the banks of the lake. District Tourism Promotion Council (DTPC) has set up water sports facilities as part of developing this lake into a major tourist centre.