The hilton is nowhere near anything in walking distance. Unless you're right in a town like tamarindo, playa coco, or something like that, most hotels and resorts are remote enough to make walking anywhere not an option. Also, at night, you'll not want to be walking rural roads. Pacific coast of CR has many beautiful beaches, but many of them are not "white sand" Caribbean type, they're usually gray or darker sand, and while some beaches are calm, some are rather rough with big waves.