Banco do Brasil, located on the main square once you cross the bridge into the old town, has ATMs.
The online portal of Guia Lençóis (www.guialencois.com.br) is a great resource for tourist information. Another excellent resource – especially for those heading into the park for a few days – is the English-language Guia Turistico Chapada Diamantina (R$49), an excellent information booklet with color photos, maps and detailed descriptions of area hikes. It's for sale at the tourist office and at businesses around town (more information at www.guiachapadadiamantina.com.br).
Associação dos Condutores de Visitantes de Lençóis Information about tour guides. Guides may also be hired through the town’s various outfitters and travel agencies.