Underwater Adventures was started in 1972 and remains Lake County's oldest dive shop. Jim Calvin has been at the helm for over 4 decades, ensuring great customer service and awesome prices on the industry's top product lines.
Jim Calvin's diving career began just after high school when he joined the U.S. Navy. Jim was positioned as a Torpedo Man 3rd Class, Photographer and Navy Diver on the Fast Attack Sub, the USS Spadefish. After completing his tour "diving" all over the world (we tease him that diving in a Fast Attack Submarine doesn't count as diving), Jim came back to Lake County, Florida where he worked as a Diving Instructor and Commercial Fisherman. Jim has enjoyed cave diving since the early 90's where he has seen spectacular dives like Diepolders and Eagle's Nest. Today, Jim's passion is teaching new people the wonders of SCUBA. You can often find him teaching in Alexander Springs or behind the viewfinder of his camera taking spectacular pictures in breath-taking Cayman Brac. You can view his photos from his his latest trek to Cayman Brac here.
Jim holds numerous certifications, not the least of which is PADI Master Instructor and an NSS-CDS Full Cave Diver. He is also a highly respectedAbe Davis Awardrecipient. Jim holds a 100 Ton Master Boat Captain's License and can often be seen in the wheel house of the 90' Super Critter or Super Critter II fishing boat in Daytona.
James R. Calvin May 31, 1952 - Apr 30, 2021 Jim Calvin, 68, passed away on April 30th, 2021. Jim grew up in Eustis with his parents, Bill and Dorothy Calvin. His love of the ocean began at an early age while accompanying his father on fishing trips out of the Daytona Beach area. At the age of 16, he became a certified diver. Shortly after graduating from Eustis High School, Jim joined the Navy, serving on the USS Spadefish (SSN-668) as a diver and torpedoman. Following stints as a commercial fisherman and college student, Jim began his career as a dive instructor in 1979. Eventually, he became the owner of Underwater Adventures, where he worked until his passing. Jim’s passions included diving, fishing, photography, and loving numerous family dogs and cats. He was a kind and honorable man dedicated to his family and friends. He will be deeply missed by his wife Marcia, and siblings Susan Russell and Bill Calvin. Jim is predeceased by his parents, brother Butch Calvin, and sister Anne Merry. A Celebration of Life will take place at his dive shop, Underwater Adventures, on Friday, May 7th. Friends may attend this casual reception anytime between 6-8 pm. at 400 West Magnolia Street in Leesburg. Bring your best “Jim” story and a joyful heart! Those wishing to remember Jim may donate to The Humane Society of Lake County, PO Box 1904, Eustis, Florida, 32727.
Peter McCumber walked into Underwater Adventures one summer in 1995. Little did he know his life was about to change forever. He had only been diving a short while when he met Jim Calvin. Peter and Jim had a love-hate relationship. Jim loved to tease Peter, and Peter hated it. But they struck a friendship almost immediately. Peter found himself getting invited to the strangest dives. One day he would be called to raise a sunken bass boat, the next day to fix an intake pipe for a large irrigation system in the swamp. One thing was for sure, it was always interesting.
Peter would soon become a commercial diver spending the majority of his work day underwater. From 1999 until early 2010 Peter worked in numerous areas of commercial diving. He has dove inside the reactor of nearly every nuclear power plant in the U.S. He's climbed 200' to work underwater in the towers that supply your drinking water. Peter has repaired oil pipelines in the Gulf of Mexico and has spent time building bridges and dams on waterways within the United States.
It was Jim that turned Peter on to his ultimate passion in diving. Peter wants to share that passion with others by teaching them how to safely dive the majestic caves of North Florida. With special thanks to Mark & Annette Long, you can view photos of some of these caves here.
Like Jim, Peter holds a 100 Ton Master Boat Captain's License. Additionally, Peter holds certifications as a PADI Dive Master, an NSS-CDS Cave Diver, an ANSI 98-01 Commercial Diver, and a TDI Technical Cave Instructor. Peter is an avid rebreather diver & Optima Rebreather Instructor, KISS Sidewinder Instructor and Liberty Rebreather Instructor. Peter holds the prestigious Sheck Exley award for making 1000+ safe cave dives.