If you are looking for a great entertainment spot, the Riverboat is where you need to be. Built as a family entertainment center, it boasts a big ball bowling alley (cosmic bowling at night), a five-theatre movie complex, an arcade, and a restaurant up top.
The riverboat on a Friday/Saturday night is THE place to be if you are in middle school or high school from about 8pm until 10pm. After that, they cater more to the high school/university crowd, with the pub upstairs turning into the main bar in the Valley.
If you're looking for a family time, the best time to go is Saturday or Sunday afternoon. You can spend a few hours in the bowling alley, grab a movie matinee, and a bite to eat at the restaurant, all without leaving the building.
For the weekday bowling fans, the riverboat also offers all-you-can-bowl for C$5 on Monday, Tuesday, Wednesday, and Friday from 9am ‘til midnight. It's a great way to get your skills up!