Champakulam Boat Race is one of the most popular and the oldest snake boat race held in River Pampa to commemorate the installation of Lord Krishna’s deity at Ambalapuzah Sree Krishna Temple. This water carnival was introduced in the 16th century by the Raja of Chempakasseri, Pooradam Thirunal Devanarayanan who was pleased with the love and affection shown to him by his subjects especially Christians.