Meet Chris, who’s been dive certified for a couple of years, and a 20-year military veteran with more spearfishing and lionfish hunting stories than you can handle. Armed with TDI AN/DP/Helitrox certification and a NAUI Divemaster, he's pretty much a walking scuba encyclopedia. Oh, and if you even think about doing a giant stride, don’t bother—Chris will give you a 20-minute lecture on why the pirouette entry is the only way to go. Plus, they're a shark hugger. Because, why not?