The amazing staff of Odyssey Expeditions


Odyssey Expeditions' instructors and staff are a highly motivated group of young adults dedicated to the education and positive experience of the participants. Many have been with Odyssey for years, including some who started as Odyssey students. They are selected with great care, evaluating their individual areas of expertise and ability to share and work with young adults. Sailing masters hold Coast Guard licenses, SCUBA instructors are experienced in teaching all levels of PADI (Professional Association of Diving Instructors) courses, and biologists have teaching and professional experience. We maintain a 4 to 1 student to staff ratio. All staff are trained in emergency first-aid and all programs have EMT or WFR trained emergency medical responders. Our staffs are the kind of people who work well both one-on-one and in group situations. Each has a genuine interest in the lives of young adults, strong communication abilities, and entertaining approaches. All strive for appreciation of the differences and opinions of each group member. Our core staff work year round with Odyssey developing education programs, others are college professors, live-aboard dive boat captains, biologists, photographers, students, and adventurers.
We feel the greatest single contribution to making our trips successful is our leaders. We take great care in selecting the people you'll be spending your summer with; quite simply, they are the best.

Jason Buchheim

Founding Program Director, USCG Licensed Sailing Captain, PADI SCUBA Instructor, PADI Advanced Freediving Instructor, Wilderness Medical First Responder, Marine Biologist, B.S. Zoology ~ Oregon State '92,

Hello, I study coral reef ecology with publications in the Journal Of Experimental Marine Ecology and the Journal of Molluscan Biology. I spend lots of my spare time taking photos, sailing, hiking, and coral reef conservation. I assisted in coral reef ecology research under Dr. Mark Hixon of Oregon State University and conducted my thesis research on the ecology of the coral reef fish, Acanthemblemaria spinosa - the spiny head blenny, in Roatan, Honduras. I have been leading educational adventures since 1992.

You can see some of my award winning panoramic science photography published with National Geographic , the Journal 'Science', Wired , Sport Diver and more. I have had work on Exhibit at Carnegie Museum of Natural History in Pittsburgh.

Jon Buchheim

Program Director, USCG Licensed Sailing Captain, Sailing Master, PADI SCUBA Instructor, Osmotic Marine Biologist, Wilderness Medical First Responder, B.S. Mechanical Engineering ~ Texas Tech University '92

Hey there, I joined Odyssey Expeditions in 1996 and have led seventy-four awesome voyages. I am in charge of the operations, purchasing logistics, and curriculum development. I love to travel and scuba diving and some of my favorites are Cocos, Costa Rica, Philippines, Palau, Komodo, Raja Ampat, Papua New Guinea, Galapagos and of course the Caribbean. I love to be on the ocean, under the ocean. I live next to the ocean. I love to take underwater photos, and just started "muck diving". Diving with schooling hammerhead sharks and sea lions keep my adrenaline flowing and I enjoy hiking volcanoes. I am thankful that the earth is 70% water. I have a companion, Pirate Sweet Petey, who is always hungry and ready to go do anything. You can check out my travel photos here: Instagram - Jon Buchheim

Sara Buchheim

Hi, I'm Sara the office manager who having spent eighteen summers teaching adventure activities in Colorado, Idaho and Oregon, now work in the Tarpon Springs office. My favorite animal underwater is the Nudibranchs, so many color and designs. I love to night dive and to share my adventure stories. In my spare time you can find me surrounded by four legged friends of the doggy variety.


Joined by an awesome seasonal team to explore the ocean world!

Melissa Giresi

Melissa Giresi Photo
  • PhD Marine Biologist
  • Dive Instructor

Returning staff, Shark Biologist!

Tropical Marine Biology Voyages

Learn to Dive and Sail - No Experience Necessary

Odyssey Tropical Marine Biology Voyages
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