As of the last time i talked with friends from Golf Costa rica the Hotel Carrari still does not have playing privalges at the Carrari. There is a problem between the club and hotel (managers don't get along) the only hortel that allpws play is the Herreadura. Try parque valle del sol they have a gringo rate 75 unlimted play. No tee times to non ticos on weekends before 11 am.
Contact Dave at Golf Costa rica
WWW.golfcr.com toll free from the states
1-877-258-2688 tell murph says hi he'll set you up.