So basically one of the guys at work this will be his last week and he leaves the country all together, so...

I thought to throw him a goodbye party. Like have fun one last time even though we're not that close, nor have I known him for a long time. Either way I think he'll be glad. I talked to most of his friends and they all think it's a good idea, however I don't know where could we go to celebrate this?
Notes: it will be on Teusday and at like 11 p.m. because one of his friends finishes work only at that time. So everyone could come.

I was thinking mayve to get a table at a bar, but what could we do at the bar? I want it to be fun. Do u have any ideas, what we could do?

Edit: I looked online and most places get closed at 11 p.m. or midnight. Any other ideas?