what is this 'surfing' which you speak of?
In regards to bringing a board to TBS, do it, if nothing else it gives you an excuse to get out of Quantico and avoid joining the collective voice of unimaginative chumps who dare to venture out as far as the Woodbridge Mall and complain how much TBS sucks. Which it does, if you just stay in the area. Otherwise, your weekends are almost always free, there's pretty much zero studying you have to do (compared to flight school), and you're getting a fat paycheck and have zero expenses except for that LTmobile's monthly payment. What better time to go on a road trip and go surf?
A note of caution: many marines, most of whom have never surfed, may look upon you with mild disgust and think you some prior pot-smoking, long haired hippie 'surfer dude' if you walk around the Q and talk about that perfect glassy day with chest-high swells. And while most of us know that swimming for your life in choppy seas for hours is a terrific workout, saying you PT'd all weekend gets you that marine respect, while saying you were surfing all weekend will get you stares. Most of your non-surfing peers will think you are some hedonistic slacker.
On the other hand, you'll be surprised how many surfers there are in the Marine corps that respect the sport and the pursuit of that awesome session.
As for Thatgnarlyguy, I will venture to say that Kaneohe Bay, HI tops San Diego for surfing ANY DAY. They're giving out those CH-53D slots like they're candy these days...