Le Dude's Old Skateboard is treasure that can be obtained in the episode Braverobber in Sly Cooper: Age of Thieves. It is worth 231 coins and the time needed to reach the safehouse is thirteen seconds.
"Le Dude once had a career as a professional skateboarder. He even had a series of games that Hypersight developed for him. This was his signature skateboard back then, when the media actually cared about him and his merchandise. Ever since becoming obsessed with weapons, this skateboard has since been abandoned. This doesn't mean this skateboard isn't worth anything, though..."
Directly behind the safehouse, hidden behind some trees, is a small ruined house. Only one room remains intact, and that is the bedroom in the upper floor. Bentley must use an Explosive Dart on rubble covering it and then use his hoverpack to reach this treasure.