The vibe at the 382-room El San Juan Hotel & Casino is that of a fun, self-contained, relaxed party. The property features a lively lobby, a sprawling free-form pool with swim-up bar, and a location right on the clean, white-sand Isla Verde Beach. Rooms are stylish and beach-y, with white bedding and furniture, light wood, bright, tropical accents, and modern touches such as clear lamps and chairs. The bathrooms are modern, too, but aren't exactly spotless or spacious. Just make sure you're happy staying put: There's not much to do nearby, and Old San Juan is at least a $20 cab ride away.