TOUCAN WATERPROOF MAP OF COSTA RICA
This is the one we use on our road trips in Costa Rica - and great for the rainy season too as it is waterproof. A good map of Costa Rica is essential in a country with few road signs and confusing directions - better than the car rental maps by far. It is a great replacement for a $10 a day GPS AND you get to meet more Costa Ricans.
Inset maps include downtown San Jose, Alajuela, Escazu, Puerto Viejo, Tamarindo, La Fortuna and more. Index to help locate towns and cities. And useful markers for things like gas stations, mangroves and the bigger potholes (kidding on that one).
I'd call this the essential map!
ITMB WATERPROOF MAP OF COSTA RICA
This is the one we used to use before the excellent Toucan map came along - and still a very good waterproof map. Particularly good with geographical features like mountains, parks and such.
Inset maps include downtown San Jose and the San Jose environs (airport locator map). Index to help locate towns and cities. Pretty good but then there is the Toucan now :-)