Staying Dry is an achievement earned by beating the game in - or under - 6 minutes 30 seconds. There are three speedrun chapters on UNCHARTED 2's trophy list, and this one is probably the least challenging. For optimal results you should switch the difficulty to Easy as the whole idea is to get through the area in one go, so it's okay to take a few hits from enemies along the way. https://store.playstation.com/#!/tid=...