The stamp has been issued to mark the Día de los Parques Nacionales.
Correos de Costa Rica said that the stamp bears a photo taken by Oscar Masís Chaves showing the famous Punta Catedral. The park is 40 years old this year.
The stamp has a value of 545 colons or about $1.11 at the current exchange rate. The post office also is selling a three-stamp set contained in a folder that has a photo of two white-tailed deer on a beach at Manuel Antonio.
Correos noted that the Manuel Antonio park gets some 318,000 visitors a year. The park is known all over the world for its beaches, trails and wildlife.