Take a wine tour! (Groupon usually has a deal!)
Visit Old Town Temecula- lots of restaraunts and shopping!
Get a little wild, gamble a little, visit the pool!
Take a hot air balloon ride (mulitple companies in the area to choose from)
Head to the Spa! (Multiple in the area)
Hit some balls before the big day (we all know RJ is going to!)
Ride a horse through vineyards!
Visit a Winery (of course)! There are dozens in the area- find the perfect one to suit your needs!
If beer is more your speed (like Jenna), head to one of a couple local breweries!