Swimming. I'm one heckuva 'nonracing' swimmer (I can race, but I'm not extraordinary. What I'm particularly good at is ocean swimming, long distance, short, storms, carrying a ton of gear, whatever... it's easier than walking for me). As a kid I've gotten sucked out to sea twice. No worries (since it was just a riptide, not an undertow), 3 or 4 hours later -after exiting the current- I was back on shore. In bootcamp I was one of the 4 people out of the 3000 tested to make level 1 (aka where they drown you or you drown them). Not a lot of call for rescue swimming outside of military applications.
Shooting. Again, not a lot of call for sniping outside of military applications, and there's more than enough men in the specialty that I'm pretty superfluous. ALTHOUGH, in a year or two I'm going to go get requal'd. Just because it's super fun and I haven't done it in ages. I'm going to be terrible, and I have no experience with weapons less than 10 years old. <grin> Which will be AWESOME. ((I really like challenges))