The Inkwells (also known as The Ink Wells) are two deep natural swimming pools in Lagunitas Creek, in Marin County, California.

They are a common swimming spot in summer, despite failing to meet current water quality standards due to high levels of coliform.

[3][4] The Inkwells are accessible by car as well as public transit, with a Marin Transit bus stop being less than a mile away.

It also carries pipes that bring water from nearby Kent Lake and the nearby Nicasio Reservoir to be treated.

[6] Coho salmon can be seen in the pools trying to jump and swim upstream from late fall into winter; the best time to see the salmon is a few days after a heavy rain.