We went out with John Float on our last day on the Big Island and it is an experience I will never forget. We weren't even out of the marina before we encountered our first pod of spinner dolphins and it only got better. A small Zodiac is the perfect way to interact with the dolphins. I could see, in other boats, they just plop the group in the water, but John takes a much more intimate approach. He paces the pod, so that they are swimming all around you. It's really so much better than I can even describe. I count it as the highlight of our trip to Hawaii and on the short list of best memories of my lifetime.