Vellayani Lake is one of the most popular tourist attractions in Kovalam. Vellayani Lake is a freshwater lake that is located at a distance 7 km from the main town. Hop into a country boat from Kovalam beach to Vellayani. Popular picnic spot amidst tourists as well as locals, it bustles with activity during the festivities of Onam when traditional boat race is organized here. The lake covers an area of 7.5 sq km, Vellayani is the largest freshwater lake in Thiruvananthapuram. The surroundings look enchanting during moon-lit nights. The rain-fed lake is locally known as ‘Vellayani Kayal’. The water from the lake is used for irrigational purposes and for drinking. You can enjoy boat riding here and can visit the Durga temple, placed nearby.