As part of the exercise the fire department dropped a car into a canal and divers practiced different rescue techniques in and around the submerged vehicle.
Meanwhile, crews on dry land directed the divers where to go. This particular training is unique for a city fire department but also very important for Fresno because of the all the canal hazards.
"Really this is unusual. We're one of the only fire departments in the nation that does swift water in confined space diving. We have to do it here because of all the canals. We have hundreds of miles of canals running through our city," Koby Johns of the Fresno Fire Department said.
In addition to swift-water and confined space diving, the team trains for trench rescues and is usually on the scene to help when a building collapses.