She can grab more of the debris out of the water with magic, though it's just more of the same weird dust.

Upstream, the riverbanks are made up of mossy boulders that look rather slippery. The waterline is a couple of feet (~a meter) below the rocky banks, so touching the water from the bank would be tricky to do given the slick state of the boulders. As would attempting to enter the water, though it's possible to just jump in.

Is Davina sure she would like to enter the water? Attempting this will be quite risky, and may result in serious injury or death. 😃