At the Lake Arenal Brewery Co! At $5 a pint it wasn't cheap, but the beer was delicious.
We couchsurfed in the town of Grecia with Bryan, our awesome new friend. He organised a three day mission with a group of friends to the Liberia area. We jumped off rocks, swam at waterfalls, and did some serious partying. Get in touch with him if you are ever in Costa Rica, his company Free Riders can get you in to some serious adventuring: www.facebook.com/costaricafreeriders
We spent a couple days with a lovely family in Aguas Zarcas. They were the host family of our friend Nighty when he visited 10 years ago. We did our best to converse in spanish for three days, did some hiking, and played lots of monopoly with the grandkids.