Hockey at this hot spot is played in several forms. One, the ice version, which requires skates that may be rented for a couple of bucks on top of the $6 rink admission. The others, of the dome and air varieties, require quarters. But you're here to beat heat -- why sweat? Grab a beer from the snack bar, prop up the bladed dogs, and watch some ESPN on that mammoth big screen. At midday, the Zamboni evicts skaters to take a turn around that frozen cement pond. The air inside the arena settles and thickens. Walking in feels like the blank, brisk frost blast when a freezer door first opens. But this is full-body, a chill you can swallow in and wallow in. Exhale slowly, from the deepest, hottest pits of your lungs. Breath looks cool in summertime. Free skate is Monday through Friday 9:20 to 11:50 a.m. and 1:40 to 4 p.m.; Friday night from 7:30 to 10 p.m., Saturday from 1:30 to 4 p.m. and 8 to 10 p.m. And Sunday, it's 1:30 to 4 p.m.