I stayed at Tesoro Beach on El Salvador's famous Coastal Del Sol. Mid-week, early part of May--the place was deserted. One hundred and twenty rooms were available, and only five other people were staying there besides my room's reservation. The room rate was $51 per person, but it included all sodas and all meals. When negotiating for a room, be sure that your room includes meals. If purchased outside of your room package, the hotel's restaurant menu offers meals in the $7 to $10 range.
The beach was empty and clean. Beautiful. El Salvador is experiencing a mini-plague of jelly-type fish washing ashore and there were a few of those, as well as sand dollars and other shells coming in with the waves. There are swimming pools and many secluded places to sit on comfortable chairs under the shade of palm trees.
The staff are very polite and helpful. One or two may know a little English, but one should know enough Spanish to ask the usual questions about lodging and dining. E-mail Tesoro Beach Hotel at: reservacionestesorobeach@cyt.net