That's a cute idea Savenger hunts are always fun. Moon Palace would be an awesome resort to do it at.
Just a suggestion to (possibly) help entice people to make sure they book with your group...organized activities. For instance, we planned a "007 Bond" themed scavenger hunt all around the resort. It honestly was one of the most fun things we've ever done. People are still talking about it over a year later. We printed out a list of things people needed to go and do, photograph, obtain signatures (from bartenders), etc. and at the end had a blindfold waiting and a "pin the tale on the shark" velcro board hanging on a wall. The winners (below) won Martini sunglasses and Target gift cards LOL! It was hilarious seeing all of our friends and family RUNNING around the resort, sweating like no tomorrow, taking pictures of fake proposals and everything else...it was really great!
We included that as well as our welcome dinner days before the wedding and any conversation about staying elsewhere really seemed to die down Just a thought!