We went in May 2008, on a whim, snow was already gone, but the tourism BC lady insisted there were plenty of activities in spring/summer.
Lumberjack show funny/amusing. Bird of prey show informative. Looked at the grizzly bears and wolves who slept and never moved. Nice views from the gondola. Would have been more fun if we had hiked up the grouse mountain then took gondola down. (didn't realize this was an option) Spent a leisurely 2 hours and there was nothing else. Parking fee $5.
Ticket fee ~$34 Thought it was overpriced for what it was.
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