Jai Alai ... The Fastest Sport in the World!
As has been noted by others, the length of the cancha is 120 feet. For comparison, Miami's cancha is 176 feet long. The front wall, side wall, and back wall, indeed, are glass. The cancha is not elevated, but is even with the floor of the rest of the fronton. The thin contra-cancha is made of the same flooring material as the main part of the cancha, not made of wood, so no "thud" sound is heard, or different bounce is made, when the pelota hits "out". The judges make the "out" or "in" call. The cancha has a ceiling, similar to the set-up at Miami; the ball is out if it hits that overhead screen. Viewers see the action only through the fourth wall, which is a screen, as usual. The screen, though, is made of a black cloth material, not metal wire. I would think it therefore has more "give", and would be difficult for players to attempt to climb it to make a catch. The screen goes from the overhead ceiling down to the floor (of course). Although the front, side, and back wall is glass, fans cannot view the action through them. The players' cage and another connected room forthe players' manager and announcer do have a view through the back wall, but those rooms are not accessible to fans during a performance. The front wall similarly has rooms behind it, accessible to the judges and other fronton personnel, who can view the action through the front wall, but, again, those rooms are not accessible to fans. The area behind the side wall is not physically accessible to fans, and probably not to anyone else, either, during a performance.