Discover Scuba Diving Key Largo PADI Course. 6 PADI DSD students and 1 DM student plus 1 O.W. student all joined Instructors Holly, David, and Jen all day today. Inst. Pam guided snorkelers. Discover Scuba Diving Key Largo PADI Course. Inst. Jen’s group got to see a huge Nurse shark being followed by a Great Barracuda just as large as the shark! These 2 dive sites hardly look like Hurricane Irma came through the Keys. Colorful soft corals and bright hard corals everywhere. Great time had by all.