The Champakulam Moolam Boat Race is one of the oldest vallam kali in Kerala state of south India. The race is held on the River Pamba on Moolam day of the Malayalam month Midhunam, the day of the installation of the deity at the Ambalappuzha Sree Krishna Temple.

Vallam kali, also known as snake boat race, is a traditional boat race in Kerala, India. It is a form of canoe racing, and uses paddled war canoes. It is mainly conducted during the season of the harvest festival Onam in spring. Vallam kali includes races of many kinds of paddled longboats and 'snake boats'. Each team spends about ₹6 lakhs for the Nehru Trophy Boat Race.