To the thousands of people who use Parade Ice Garden year round, the three ice rinks are a convenient, if game worn, place to play hockey, figure skate or just take a few laps for fun and exercise.
But it's what is unseen that is causing most of the problems.
The refrigeration system is old, mechanically and environmentally. On top of that, it leaks.
Faced with either expensive renovation or closure of the popular 40-year-old arena, the Minneapolis Park and Recreation Board voted recently to go ahead with a nearly $9 million renovation.
"[They] were in a bind, and it's really a terrible decision to be faced with," said Arlene Fried of Minneapolis Park Watch, which monitors the Park Board's activities.
The extensive renovations of the Kenwood-area arena, which are already underway, include replacing the outdated refrigeration system, the rink floors, boards on the south rink and the dehumidification system.
"It's a complete renovation," said Bruce Chamberlain, the Park Board's assistant superintendent for planning. "All the mechanical systems are being replaced."
The refrigeration system replacement is the most costly part. Currently, the arena uses an R-22 refrigeration system, but R-22, a greenhouse gas, is being phased out by the federal government by 2020.