Jardines Botánicos de Vallarta - Botanical Gardens
You can arrive by catching the bus to “El Tuito” at the corner of Carranza and Aguacate streets, in the Romantic Zone. This bus leaves every half hour or so. This bus will also return you to PV. Bus fare is 30 pesos (about 1.60 USD) each way.
Link:
Jardines Botánicos de Vallarta - Botanical Gardens