Doro Cruises 
Description
Several companies offer 50-60 minute cruises up and down the Douro running from either the Ribeira or from the Gaia Waterfront. The tours run up the river to the Railway bridges, turn come back through the centre down to the last bridge before the sea, turn again and then return to the starting point. They offer excellent views of both Porto and Gaia, even if the tour I was on (and by the looks of it all the others) have no commentary
Charge
Charge, Discount with a Porto Card
Getting There
Latitude: 41.140168; Longitude: -8.612985
What3Words: draining.mess.vows
