I'm heading to Vegas the week of March 9th for a conference, and my sister will be meeting me there. It's the first time to Vegas for both of us. We'll be there over her birthday (she's turning 22; I'm 28) so I want to make it a really special trip for her.
We're staying at the Southpoint and are planning on renting a car to get to and from the strip. She really wanted to see Cirque, so we have tickets for Mystere the night of her birthday. Beyond that, we have no solid plans (except for those pesky conference sessions I have to attend...) ;-)
I know that no matter what, we will find plenty to do in Vegas! Keeping that in mind, are there any can't-miss attractions for two twenty-somethings? I would also like to take her to a spa, of which there seem to be plenty in Vegas. Any recommendations?
Many thanks in advance!