Rio Relay River Cleanup 5K

Join Sonoran Institute for a first of its kind event along the Santa Cruz River!

The Río Relay is a fun run and volunteer opportunity for the communities surrounding the Santa Cruz River in Pima County to connect with the beloved Santa Cruz River.

Much like other fun runs, this is a roughly 5k experience. The “race” will start at Juhan Park and end near Mission Garden. As folks trek through the Santa Cruz Riverbed, they will be working in teams of 2 or more to remove as much trash as possible within the 3-hour time frame. This will be considered rough terrain, and participants are encouraged to walk rather than run.

For more information visit and register at: Rio Relay, River Cleanup 5k