People in colorful costumes steered their paddle-boards along a channel during the 6th International Fontanka-SUP stand up paddle boarding festival in St. Petersburg, Russia on Saturday. /CFP

As one of the hallmark summer events of the city, the festival attracted over 3,000 SUP lovers to get together and celebrate. /CFP

The stand-up borders would row nine kilometers along central rivers and canals, passing by the city's major tourist sites. /CFP

Participants also competed for the best in fun categories like board design and original costumes made of recycled materials. /CFP