I am getting married at the Riu Vallarta next week. We are doing the 2010 Royal package, and when they emailed me, they made it clear you can only have 40 guests otherwise you have to upgrade to the next package. I am right at 40 so I guess that's not a problem for us. As for the costs I believe it was it says on the website, I guess I'll find out when I get there and can let you know. I am not renting the poolside bar, $180/hr is not worth it to me and I also know someone who got married there last year so who said it works fine to go just to the regular bars on the hotel property and if you tip the bartenders they will take care of your group so that's what we're going to do. Sorry I can't be much more help, I am just going with the flow and hopefully everything will turn out when I get there.