The 701-room Riu Guanacaste is a lot like a Riu anywhere, with a good beach, a huge, raucous pool, an energetic entertainment staff, and a party-hearty, booze-fueled atmosphere. Rooms are nothing special, and a la carte restaurant reservations need to be made a day in advance. If you're after a convenient, typical all-inclusive experience, this is it; if you're looking to experience local charm, not so much.