Even though Bill is currently retired, you never know when he will pop in on one of the trips. One of the world’s first SCUBA instructors, Bill has certified tens-of-thousands of divers who have traveled around the world with a spirit of adventure and learning. Bill is a graduate of the University of California at Santa Barbara and holds a Master’s degree in Marine Biology. His thesis work focused on circadian rhythms in sharks. He has co-produced several television documentaries on shark behavior and shark attacks. Bill has taught as a professor of marine biology, zoology, botany and California plants and animals at several colleges. With a Coast Guard Captain’s License for 100 Ton Vessels, Bill is an expert on the local diving sites-known where to land his anchor on an exact pinnacle and dive directly to a wolf eel he met 30 years ago.