close encounters of the wild(life) kind

I had an feathery experience while swimming in the ocean...at the beach in front of my house is a rock which, at high tide, I dive from. I swim a set number of strokes out, then swim back in. So I've done about ten of these out and backs, and am feeling pretty winded. After swimming out again, I float on my back, recovering. An eagle dives down and swoops over me, about a metre above my body...I could see his belly, talons, tail feathers, etc so clearly! But it also spooked me! Thank goodness he didn't think I was a salmon...