This is Stillwater Cove Regional Park in Sonoma County. Wonder what lies under the water here?
Dirona albolineata aka “White lined Dirona” is a nudbranch aka seaslug. Unlike their brothers from a different mother on land, these ocean going slugs are gorgeous. Nudibranchs are found all over the worlds ocean and come in more colors and varieties than roses in a rose garden. This 1-1/2 inch sea slug is on the prowl for small snails which it cracks the snails shell with its jaws. I’d like to get a photo of that!