Stand-Up Paddleboarding ( LEAVENWORTHLAKE CHELANWENATCHEECASHMERE ) – Have you tried the newest activity to hit the water-sport world?  Stand-Up Paddleboarding, or SUP for short, consists of riding an oversized surfboard and using an extra long paddle to navigate.  Washington's Playground offers Stand-Up Paddleboarding opportunities from calm lakes, to easy-flowing rivers, to whitewater surfing waves.  There are multiple outfitters that rent and sell equipment, offer lessons, and provide guided tours to fit every skill level. It’s a great way to get some exercise while enjoying our rivers and lakes on those hot summer days.