Ключевые слова: acid, active, adventure, america, ash, blue, cartago, central, clouds, costa, crater, danger, emerald, environment, eruption, fire, fume, gas, geology, green, heat, hill, irazu, lake, land, landmark, landscape, lava, mountain, national, nature, park, power, rica, rock, scenic, seismic, sky, stone, sulfur, tourism, tourist, travel, vegetation, volcan, volcanic, volcano, volcanology, water,