One of the most visited volcanoes in Costa Rica due to its proximity to the capital, the Poas Volcano makes for a pleasant half-day trip from San Jose. The principal draw of this relatively small national park is of course the main crater of the volcano, one of the largest accessible volcano craters in the world. Be prepared for changeable conditions here though as the constant geothermal activity means wafts of sulphurous gases are usually prevalent, sometimes obscuring the crater and its impressive lake. There are also a number of short forest walking trails within the park which can be explored before you transfer back to the capital.
