Hey, I look on here for ideas of where to go and looked up Goiania. In addition to great sex, I love exploring interesting places. I googled "What to do in Goiania and this was the result from lonelyplanet:
1. Botequim Mercatto: a traditional Brazilian bar-restaurant with a focus on upmarket food
2. Celsin & Cia: Goianienses of all ilks drink in droves at this traditional boteco
3. Chão Nativo: Break out the calculator to help you choose between pay-by-weight or all-you-can-eat
4. Mönch Bier: Look for the eagle sign to find this worthwhile bar with an unparalleled domestic craft beer list
5. Truckland Foodpark; They've circled the food trucks here, which surround a casual patio of plastic seating
Literally this was at the top of the page...
So that better be some hot damn sex after you get back from the Truckland Foodpark!
(https://www.lonelyplanet.com/brazil/goiania/top-things-to-do)