These business operations include Halcyon Manufacturing, Extreme Exposure Adventure Center and Global Underwater Explorers.
Also, in 1989 he became an open water instructor and currently holds certifications for GUE, NAUI, PADI, CMAS, YMCA and PDIC.
From 1993 to 1996, Jablonski was a scientific diver at the University of Florida supporting research on groundwater in the Santa Fe River Basin.
[1] Jablonski was also a board member for the National Speleological Society - Cave Diving Section (1996–1998) as well as serving on their training committee from 1995 to 1997.
[1] As training director for the Woodville Karst Plain Project (WKPP), Jablonski saw a need to expand his role to benefit a larger population of divers.
[8] On April 25, 1997, Jablonski along with George Irvine and Brent Scarabin set a new penetration record of 11,000 feet (3,400 m) in Wakulla Springs.
The new record for the longest penetration at any depth is now held by Jon Bernot and Charlie Roberson of Gainesville, Florida, with a distance of 26,930 feet (8,210 m).
[12] On May 20, 2007, Jablonski and McKinlay set off from Turner Sink to try to find a connection but were unable to when the cave became impassable after 3 miles (4.8 km).
On December 15, 2007, they completed a traverse from Turner Sink to Wakulla Springs, covering a distance of nearly 36,000 feet (11 km).