We used to do it with a Y-flier racer down on the Gulf Coast when I was a kid, but those were probably smaller waves than what you're talking about. We would have the mainsail and jib ready to raise, walk/paddle the boat out a ways, then raise the sails and scramble like heck to get it under control. Coming into the beach, we would head straight in at a good clip, then luff the sails and raise the centerboard at the last minute and coast right up onto the sand. Getting the centerboard up at the right moment was the trick - too soon, and we would slide right into the swimming area, and too late and we'd have quite a jolt.