For desktop users, BookIt offers 3-night stays for two at the All-Inclusive Riu Guanacaste
in Guanacaste, Costa Rica, with prices starting at $614.97
, as provided by Dunhill Travel. (We found this rate on August 18.) At $205 per night, that's the lowest price we could find for this package by $15. This 4-star hotel has an Expedia rating of 89% based on 658 reviews. Book this travel deal by July 9 for travel from August 18 through October 31.