Costa Rica is a predominantly Catholic country, so yes, they do celebrate Christmas. Many people in Costa Rica celebrate the holiday with traditional activities like attending midnight Mass, setting up nativity scenes, and sharing festive meals with family and friends. There are also many popular holiday traditions unique to Costa Rica, like the roscados - sweet pastries made with cinnamon, raisins, and other ingredients. Costa Rica also has a number of unique Christmas carols that are sung in Spanish and often involve the use of traditional instruments like the marimba.