Trip to Guanacaste in July, Any hobby suggestions?

I will be staying at the the Westin Playa Conchal that I have been told is in a pretty isolated area. I do know trips to Tamarindo are offered that I have read is the place for nightlife adventure if one is careful. Wondering anyone has suggestions on arranging activities with a beautiful Tica in the either area and who I should contact or where I should be going?