Juni is a brilliant old soul with a deep love of the sea and her children. an experience with him is superior to all others. I have been out with him several times and I always have the same experience. he's great with sharks and bad with people. this is fine to me, but realize what you are getting in to. he operates alone and has no ability to save a troubled diver. most boats at Hol Chan leave a mate on a power boat to quickly rescue if need be. Juni is also mesmerized by the undersea and he regards this as his special time. if you don't keep up with him, you are on your own. so, go with him to see his good stuff if you are a strong swimmer and can handle the currents. otherwise, I strongly recommend Carlos at the Sandbox. he'll notice if you're having trouble with your mask and he will guard your life as his first priority.