Activity for Adrianna

I'm going to have an awkward amount of time between my ceremony, at 1pm, until my reception at 5pm. What would you do in between that time for guests? Our ceremony will be around 30mins long, so ending at 1:30ish. I hate to be rude to my guests but...

I'm curious to know how everyone feels about save the dates and wedding invitations. Would it be okay to just send out one invite or is it expected to do both? What did/are you doing for your wedding?