We’re not always altogether comfortable with organised group tours, and although both of the outings with Paraty Tours have been good, it’s time to go independent again after two successive days of being chaperoned by others. So Wednesday morning we head to the bus station and wait in the heat for the number 25 bus to Trindade which, by the time the driver reverses out of the stand, is ridiculously overloaded with far too many people and far too much baggage. The little bus really struggles on the mountain climbs, with the driver opting for first gear and a raging engine uphill, then inching slowly down the other side with…