An ultramarathon off the beaten track will attract more than 200 runners before sunrise on Sunday.

The 60-km run, dubbed the city’s only ultramarathon, will traverse the expanse of the East Calcutta Wetlands. The trail of pebbled tracks cutting through the wetlands with runners making their way past cows, ducks and cycles offer a unique experience for seasoned and amateur runners used to sweating it out on smooth city roads.

The Kolkata Ultra 60, in association with The Telegraph, will start from Urbana off the Bypass. Runners will have to complete a 20-km course three times, individually or as a team.

“Ultra marathon is a niche category. The distance of 60km is very challenging. So, we have divided the race into two categories — individual and team,” an organiser said.

Participants can take part in teams of three with at least one female participant. Each will have to complete the stretch once in the relay format.

The race, in its second edition, is being organised by Kolkata Ultra, a group of running enthusiasts who sponsor budding athletes.

“This race creates environmental awareness about the wetlands, a Ramsar site,” said Nishant Maheshwari, a member of the group and director of the sports management company Sportiz that organises the race.