Vale dos Dinossauros is in Paraíba, Brazil. It is a cluster of dinosaur sites, only one of which has some infrastructure for visitors.
Entry is free, but if you accept a guide, he will appreciate a R$ 5-10 tip.
No public transport.
No food can be bought on the sites. There are shady benches near the visitors' centre that are good for a picnic.
A few soft drinks are sold at the visitors' centre.
The best facilities are in Sousa.