Grubauer's parents, Peter and Suzie, arrived from Germany on Wednesday. His girlfriend, Isabell, also is here and had the chance to get on the ice after practice.
"I'm thankful they made the journey over here, and I think it's really special for them to watch the game," Grubauer said. "They usually watch it at 3 in the morning at home. For them to see the game live here is really cool."
The Avalanche play one mile above sea level -- 5,280 feet -- at Pepsi Center in Denver, but Falcon Stadium is at an even higher elevation. A sign warns visitors about the lack of oxygen at 6,621 feet.
"I felt it out there," Grubauer said. "I was asking for an oxygen mask after our skate. I don't know how many feet it's higher than Denver, and you feel every single one. But it was really fun, and the ice was really good."
It was a sunny day with blue skies and temperatures in the 50s after two weeks of frigid weather and snowstorms.
"I know it was a little bit warmer, so they expected the ice to be a little bit soft, but it was actually one of the better ones I've skated on," Grubauer said. "It was a little hard to see the puck with the sun and how it reflected off the ice, but just to be out there with the guys was a really special day.
"The stands are little bit farther away, so it makes it a little bit different for the angles. It's not the same feeling as in a regular rink, but today was a good practice to get adjusted. It's not a major difference."
Grubauer made 35 saves in a 3-2 loss to Washington on Thursday. He allowed three goals in his four previous starts, all wins.
"Today was the time to soak it all in, and [Saturday] it's all about business and preparation," he said. "We're looking for the two points we didn't get [Thursday], so we've got to make sure we win the next one. That's the one we need to win. It's such a special game that we want to walk away with a good memory and with a win here."