hey sly, we are doing the saturday night party there at a club right on the beach in playa hermosa. its really close to jaco and shuttles will take everyone. iwantu says its a super nice place and it is right on the sand with a crazy patio and pretty big i hear. on the parties page on costaricabash.com you can see the link. let me get it.
http://www.backyardhotel.com/