Here you can see the national map of Costa Rica. For the abbreviations contained on it, the table provides information about their meaning. In my opinion, these are some important landmarks. My logo marks the location of the national park Barra Honda. A local map is opened in a new browser window, which corresponds to the section of the black frame.

Short­form	Significance	Short­form	Significance
OP	Pacific Ocean	MC	Caribbean Sea
NCY	Peninsula Nicoya	OSA	Peninsula Osa
P	Port Puntarenas	L	Port Limón
-------	Panamericana	-------	Further roads
LA	Bridge La Amistad	A	Lake Arenal
MV	Monte Verde	T	Mountain range
SJO	Airport int.	CM	Cerro de la Muerte
O	Capital San José	O	Further towns