I'm always thrilled to see these gorgeously colored, swirling pondweeds. Their underwater leaves sway gracefully beneath the surface, a striking burnt orange that swirls with the currents. They have floating leaves as well, which have a totally different color and shape, as can be seen below. It's really calming and beautiful to swim amongst them.
They can look like a piece of abstract art when captured in a current.
I believe this is Potamageton gramineus, known as variable leaf, or grassy pondweed
