I love this image. It's bull kelp. This particular photo was taken as part of the Census of Marine Life, which is an umbrella over a whole lot of projects that are collectively documenting biodiversity in the ocean. I'm drooling over their image gallery.
I can't take pictures like this yet, but maybe one day I'll get an underwater camera. I've been warned that putting mine in a ziplock bag is not going to cut it.
When it's not modeling for photos, you can find bull kelp acting as crucial structural and nutritional support for complex offshore ecosystems, as media for herring roe fishing, and as the base for this special Alaskan salsa.