Yumká is an ecological reservation covering 101 hectares. You can find there three ecosystems which are also present in Tabasco. Savanna, a lagoon and forest with all the animals normally living there. Every tour takes about 30 minutes. Afterwards, you can relax in a recreational area. Apparently only Spanish is spoken.
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Historical museum pertaining to the state of Tabasco and Mexico. Pretty small.
House museum about a local poet.
Museum about indigenous people.
Exhibits, mostly from La Venta mentioned above, and a codice (i.e. ancient text).
Catedral de Villahermosa
The iconic church of Villahermosa. Sits on site of original 1776 church, though present structure was constructed between 1945 and 1970.
Parque-Museo La Venta
The museum, situated in a park, is one of the biggest tourist attractions in Villahermosa. La Venta is a swamp area north of the city. Scientists found pieces of the culture whilst drilling for oil. A lot of exhibits connected to the Olmec culture can be seen there. For example one of four really big stone heads. They also have some animals in the park, and a natural history museum. Make sure you wear long clothes and use a mosquito repellent.