Lewis Hamilton isn't just a killer on the track -- the Formula 1 superstar clearly knows his way around the water, too ... showing off his incredible moves during a surf session in Malibu this week.
Of course, Lewis is all about getting his adrenaline rush when he's not behind the wheel -- he recently went skydiving in a pretty terrifying video.
But, things were a bit more chill during the Mercedes driver's off-week before Silverstone ... throwing on his wetsuit and catching some waves in California.
The guy clearly knows what he's doing .