This photo is taken by "hand-made" microscope: camera's lens on a reversal ring, a glass on small elevation and a fluorescent lamp under it.
I took some water from pool and started to examine it, putting few drops on a glass.
This was the biggest moving specimen. One of the pictures shows it comparing to a string from a cloth, I used to wipe glass.
Location shows where the water was taken.
Balanus on the kelp at Mission beach
Found attached to a large striped bass
Cluster of Pollicipes polymerus found at Tongue Point beach near the Salt Creek Recreation Area, WA
Microscope view of an adult copepod from Possession Sound off of Everett, WA