Ключевые слова: active, america, area, boiling, brown, bubbling, carbon dioxide, central, crust, danger, destination, earth, emission, gases, geology, geyser, ground, hole, holes, hot, landmark, leon, mountain, mud, nature, nicaragua, outdoor, park, place, pool, rocks, san jacinto, scenery, scenics, sightseeing, site, soil, spring, springs, steam, sulfur, tourism, tourist, touristic, travel, vapor, visit, volcanic, volcano, water,