He is, truly, but only a fraction as much as he likes to let people think.
... which still puts him ahead of the game in the crazy department. Doesn't make him any less of a good pirate though. Or a good captain for that matter.
And just as long as you aren't letting the cleavage get sunburned it's good. Usually suggest plain cotton, light colors, keep everything covered to prevent burning and chapping. Steady enough breeze to keep us moving doesn't seem like much, but after a day or two it gets worse.