Sreekanteshwaram, is an ancient temple right in the heart of the city. This is also very close to Sri Anantha Padmanabha Swamy temple. The temple is quite small, constructed in typical Kerala style and wood work here is artistically done and visible in the images displayed below. This is visited by locals everyday.
Siva is the main deity here and Lord Vishnu is also worshipped here.
The Sivalinga here, is believed to be a Swayambhu ( self manifestation) and there are sub shrines for Ganesha and Ayyapa.
Please check this link for more details. http://sreekanteswaramtemple.com/