About Jeff Johnson
Jeff began scuba diving in the 60s as a child in his parents pool and  in the tributaries of the Chesapeake Bay. He
continued with formal scuba education in the mid 80s. Entered the cave training programs in the late '80s. During cave
training he was introduced to nitrox and completed his full trimix course in 1994.

  • Teaching experience: as a Dive master and Assistant Instructor, Jeff assisted hundreds of classes under the
    tutelage of a master scuba diver trainer for 8+ years. Began teaching technical courses in 1997 and CCR in 2003

  • Began technical and cave diving 1989

  • Dives between 300 - 400 fw

  • Technical dive instructor 10+ years

  • Closed Circuit Rebreather instructor 5+ years

  • First IANTD Optima Instructor under the tutelage of Tom Mount, 2004

  • 1st IANTD Hammerhead eCCR  instructor in US

  • 4th Titan CCR Instructor worldwide January 2007

  • CCR cave instructor: One of first 5 IANTD ccr cave instructors in US

  • Expedition trimix Instructor: one of first US


  • Rebreather, cave and trimix experience:  Jeff completed his closed circuit rebreather course in 2000 and
    holds ratings on 7 different rebreathers to date.

  • Dives: In a single year Jeff makes as many as 100 personal, non-training dives. He makes as many as 90
    cave dives in a year and dive shipwrecks in the ocean and Chesapeake Bay. Jeff dives  as deep as 180 fsw
    on air and heliox or trimix to depths of 300ft +. His dives are in the range of  2 - 4 hours bottom time.

  • New technology and testing experience: privileged to receive and test dived the first run of  HammerHead
    electronics.  Jeff also  test dived the  Dive Rite Optima for a year prior to its release.


  • Emergency Medical / Fire Fighting: Emergency medical technician and fire fighter for many years running.
    Works  in the motion picture industry administering first aid and emergency medical aid to the cast and crew