Three Rivers Karting (3RK) is the premier indoor karting facility in the Pittsburgh Tri-State area, equipped with electric go-karts. This year, 3RK has expanded with indoor axe throwing, a large arcade of over 40 games (plus 13 pinball machines), and the NEW Garage Bar & Grill serving your favorite menu items plus an endless list of soft and alcoholic beverages at the Bar! 3RK is now your one-stop-shop for FUN!Three Rivers Karting (3RK) is the premier indoor karting facility in the Pittsburgh Tri-State area, equipped with electric go-karts. This year, 3RK has expanded with indoor axe throwing, a large arcade of over 40 games (plus 13 pinball machines), and the NEW Garage Bar & Grill serving your favorite menu items plus an endless list of soft and alcoholic beverages at the Bar! 3RK is now your one-stop-shop for FUN!