Review for Riu Guanacaste Hotel and Casino Review For Riu Guanacaste Hotel and Casino Google User May 31 '18 at 20:30 Awesome. The only downer was the casino. It was too "childish" if that can be applied to a casino. The beach is not the Caribbean do don't expect white sand and clear water Everting else was great. The did is incredible and the entertainment was fun. The rooms are adequate and the staff cannot be nicer. Definitely will be returning. View full site to comment or like