Porto Douro river, traditional rabelo boats on the Douro River with the skyline of Porto at sunrise in the background, Portugal, Europe.

- Image ID: J3J638
Porto Douro river, traditional rabelo boats on the Douro River with the skyline of Porto at sunrise in the background, Portugal, Europe.
Michael Brooks / Alamy Stock Photo
Image ID: J3J638
Location: Porto, Portugal, Europe