Kavvayi Backwaters form the largest backwater system in northern Kerala, covering 37 square kilometres of interconnected channels, islands, and lagoons near Payyanur. They are far less visited than the famous Alleppey backwaters further south and retain a genuine quality that the more touristy stretches have lost — fishing villages, coconut groves, and quiet channels that you share with kingfishers rather than houseboat convoys.
Boat trips can be arranged from Payyanur town, 4.5 km away. The main island, Valiyaparamba, is large enough to walk across and has a beach on its western side facing the Arabian Sea. The tourism infrastructure is modest — boats are hired from local boatmen rather than tour operators — which is part of the appeal. The best time is early morning or late afternoon.