For hard-core, rugged, wet, environs, nothing protects the photo gear (and anything else that cannot stand to get soaked) like a Pelican Case. From Alaska to the jungle, serious shooters carry Pelicans. I borrowed this one from Tim Romano, then went home and bought my own. 

On the downside, that Buff headwear thing you see wrapped around the handle of the case is there for a reason.  After a mere 20 minutes in the jungle, it turned into little more than a sopping, stinky, bug magnet, and stayed that way for eight days. The only other gear misfire on my trip was the watch I wore, which inexplicably changed time zones when I least expected it to—dangerous stuff, considering how fast the sun sets in the tropical jungle. Twice I thought it was five o’clock, only to realize I was an hour behind, then had to dash back to camp in the gathering darkness.