This morning on a beach stroll I saw the local Spinner dolphin pod moving through the shallows. I grabbed the radio out of my pack and waded out about 100 yards into the chest deep water. When I got close to the pod, they turned and came towards me for an inspection. Eventually they came close enough that I could hear their ultrasonic squeaking while they were circling.
It was absolutely amazing - though also terrifying when I initially saw a bunch of fins coming straight at me.