TAMPA, Fla. (WFLA) — The Hillsborough River turned a bright “kelly green” on Friday as the city tested the dye for the annual River O’ Green Fest.

Turning the river green has been an annual St. Patrick’s Day tradition since 2011, but the city went the last two years without dyeing the river due to the pandemic.

The river is traditionally dyed right before the River O’ Green Fest, which will return after a two-year hiatus on Saturday, March 12 at Curtis Hixon Waterfront Park. The free event will take place from 11 a.m. to 5 p.m. and feature Irish music and dancing, food trucks and family-friendly activities.

Green dye testing took take place around 10 a.m. on Friday, March 4. The dye used is said to be safe for the environment, non-toxic and biodegradable.