My fiance and I are getting married at the Riu Guanacaste in November 2011 and decided one of our gifts to the bridal party was going to be an excursion. I just wanted to share the great experience we've had so far with Avispas Adventures in the Guanacaste area. Amy is the owner (american) and Jose (Costa Rican) and they have made the experience easy! They have set up a schedule of excursions for our entire group to jump in on if they wish and it will only be private tours which is great for the 'feel' and 'vibe we are looking for! Anyone looking for excursions for yourself or the whole group I would recommend Avispas Adventures...www.avispasadventures.com.