It will be busy on some roadways in Okotoks Saturday morning as the Natural High Fitness Triathlon gets underway.

From 8 a.m. to 11 a.m. some roadways will either be closed or down to a single lane with traffic going both ways.

Triathlon Race Director Andrew Gustafson says the lanes could open up sooner, pending on how the races go.

"Typical for this length of race the fastest people will be about 75 minutes, the slowest people will be around two hours," he says.

The following roadways will be closed or down to one lane:

Eastbound Milligan Drive closed, and Westbound Milligan Two-Way Traffic.

North Bound Highway 2A Right Hand Lane will be closed... Left lane open.

Eastbound 338th Avenue between Northridge and 32nd. (Car Dealerships to the Big Church)

32nd Street from 338th Ave to Milligan Drive... from the 7/11 to D'Arcy Ranch is Closed.

The race is open to the public to watch and they'll be having a Barbeque, proceeds from it go towards KidSport.