Alvaro,
If you looked on the website you would see the contacts names as the property has 2 owners listed on the site. The area is quiet and located in a tranquil area of Costa Rica.
I would recommend you give them a call as I spoke with one of them and they are from California and Europe.
Regards,
Tony G
5,000+ unique articles, valuable E-Books, dozens of useful reports, 300+ online videos, biographies of trusted, reference-checked bilingual Realtors