Surfing is exploding on the Great Lakes. You’ve heard it before. Thicker more flexible wetsuits are making the frigid winter conditions more accessible, yadda, yadda. But no matter how thick the suit, booties, or gloves, you can’t surf on a lake that’s frozen. You just can’t. But surf, according to Gerry Lopez, is where you find it, even on a frozen lake. Even if you have to trade a board for a shovel.