This one is hidden on the eastern side of the park. Go to the Simón Bolívar statue, when you are facing the statue, go to right fence (it is a gate), kneel like you are tieing your shoe lases and you will find a black micro with a log inside BYOP.
This park is one of the most popular in San José, and has a lot of history, I ll try to make a brief.
First it was known as Plaza La Laguna (laguna means lagoon) because it had an artificial lagoon where the neighbors used to get clay to build their houses. In 1853 Juan Mora Porras created la Fábrica Nacional de Licores (Antigua Fanal, it is a building close by, nowadays the Culture Ministry owns the place) and in 1877 they drought the lagoon and built the park, because of public health issues. The cost was 1500 pesos.
In 1910 the kiosk was built by the Comisión de Fiestas Cívicas, and later was replaced by the actual one, known as Templo de la Música, because it has a great acoustic, it is a replica of the temple of love and music in the Palace of Versailles.
Its name is in honor of Francisco Morazán, chief of State in 1842, who wanted to create Central Amerca Union, but Costa Rica didn't want to be part of it. Morazán was killed in San José.