On those hot days, it's hard to resist a swim in a cool body of water.
But findings of toxic algae and high bacteria levels in area lakes and rivers make a few swimmers more cautious.
The Rogue Riverkeeper program is set up to help... with The Swim Guide.
The web page and smartphone app let swimmers see the latest information on water quality at a number of swimming spots in the Rogue, Illinois, and Applegate Valleys.