of actual ice rinks, there are basically two rink sizes in use at the highest levels of ice hockey. Historically, earlier ice rinks were smaller than today. Official National Hockey League rinks are . The dimensions originate from the size of the Victoria Skating Rink in Montreal, Quebec, Canada. Official Olympic and International ice hockey rinks have dimensions of . Para ice hockey Sledge hockey ( "Para ice hockey", or "sled hockey"), uses the same rink dimensions used by ice hockey rinks. Ringette Ringette utilizes most of the standard ice hockey markings used by Hockey Canada, but the ringette rink uses additional free-pass dots in each of the attacking zones and centre zone areas as well as a larger goal crease area. Two additional free-play lines (1 in each attacking zone) are also required. A ringette rink is an ice rink designed for ice hockey which has been modified to enable ringette to be played. Though some ice surfaces are designed strictly for ringette, these ice rinks with exclusive lines and markings for ringette are usually created only at venues hosting major ringette competitions and events. Most ringette rinks are found in Canada and Finland. Playing area, size, lines and markings for the standard Canadian ringette rink are similar to the average ice hockey rink in Canada with certain modifications. Early in its history, ringette was played mostly on rinks constructed for ice hockey, broomball, figure skating, and recreational skating, and was mostly played on outdoor rinks since few indoor ice rinks were available at the time. Broomball The organized format of broomball uses the rink dimensions defined by a standard Canadian ice hockey rink. Spongee The sport of spongee, "sponge hockey", does not use ice skates. A skateless outdoor winter variant of ice hockey, spongee has its own rules codes and is played strictly within the Canadian city of Winnipeg as a cult sport. The sport generally uses the rink dimensions defined by a standard Canadian ice hockey rink. Rinkball Rinkball rinks today typically use the measurements of an ice hockey rink, though may be slightly larger due to the sport having originated in Europe where the bandy field influenced the size and development of smaller ice rinks. Tracks and trails Tracks and trails are occasionally referred to as ice rinks in spite of their differences. Ice skating tracks and ice skating trails are used for recreational exercise and