Cold weather comes as a relief.
Cold, but not too cold. When the thermometer drops he waits for the perfect moment to flood the outdoor skating rink across the street from the Parsenn ski lift in Davos Platz. Eight below on the Celsius thermometer is 18 degrees Fahrenheit. When it's too cold, it freezes immediately and you get lumps. After he lays down a base, the rink will be strong enough to support a Zamboni, the machine that smooths ice at indoor rinks.