The pair have two younger siblings, twin sisters, but Kayla said she won the chance to come on the trip by seniority. She is two years older than Charlie.
"As a kid, I feel like I probably complained about it a lot," Kayla said. "But looking back, it definitely brought us a lot closer as siblings and as a family. So it was worth it for where he's at now, for sure."
Brad Marchand even gave his brother some credit for some of his hockey skills.
"He's the one who taught me the five-hole move, actually," Brad said. "It was summer hockey. One time we were playing and he kept doing it. I had never even thought of it before. So he showed me the technique. Now I've got it down."
For the brothers and sisters, it was a chance to spend some time with their hockey-playing siblings, to see them play a pair of games and meet their teammates. It also was a chance to get a few jokes in at their expense.
Asked for some insight into his brother, Jeff Marchand quipped, "He's big into poetry. Loves poetry, Shakespeare, reading, writing. He's in poetry clubs."
It took only a second for both brothers to burst out laughing.
"When we were kids growing up, Brad had a rule: Nobody was allowed to touch me except for him," Jeff said. "So when we were playing hockey we always played on the same teams. If I got hit by anybody, he was the first person out there and he would run them through the boards. He would always protect me. Then we'd get home and he'd beat me up himself."
But he was thrilled to be there for the trip and for his brother.
"They've got a special group here this year," Jeff said. "So looking forward to being a part of this, this week."