I would look at youth events, vice semi-pro, with the intention of getting the participants and families in the park. I'd use Disney World as an analogy, though it's a poor one, but the idea is by hosting sports events on ice you can draw guests in general to the park.While the park could choose to do any of those options with their ice rink, i think a difficulty will be adding in elevated seating to watch either. Additionally, I think the logistics of hockey and (unless it's a semi-pro team match) the limited attendance draw for youth team play makes it a tough sell.
Doing some kind of Peanuts on Ice show may be more their speed, especially if there's opportunities for an up-sell for skating with the characters or an on-ice meet and greet sort of thing.
Learn to skate with Woodstock?
On-ice shows or character meets would be nice, though seating would need to be figured out - maybe bleachers could be set up where the grandstand is.