While parts of the American River are shallow enough to scrape the bottom, others are safe enough to jump from nearby bridges even though it is illegal.
“You just have to swim to the bottom and if you can touch the bottom, you really do not want to jump there,” said Josh Harding, who swims in the river.
Over the weekend, one teen broke their leg from jumping in the river.
Rather than use a boat to rescue them, Metro Fire said the water was too shallow so they walked.
Now Metro Fire is cautioning others on safety, suggesting swimmers find a swimming hole or an area without fast-moving water that is also deep enough.
Normally, the Folsom Dam and Nimbus Dam release water at 4,000 cubic feet per second, but a drier than regular season has them releasing at 1,000 CFS.
The low releases not only mean less water to play in, but longer hours for fishermen.
“It means not a lot of fish,” said fisherman Neng Vang.
The dams are regulated daily by the Bureau of Reclamation.
They say they will release as much water as needed to prevent damaging any natural habitat in the American River.