The train service between Caminha and Viana do Castelo is primarily served by the Regional trains operated by Comboios de Portugal, offering a reliable and scenic journey along the Portuguese coastline. This route does not feature high-speed trains, with the Regional service operating at speeds of approximately 50 to 90 km/h (31 to 56 mph), depending on the specific segments of the route. The journey typically takes around 1 hour and 30 minutes, with a few stops that allow passengers to enjoy picturesque views of the Minho River and surrounding landscapes.
The train features comfortable seating and offers a more relaxed travel experience compared to faster options, making it suitable for those wishing to take in the local scenery. Additionally, this service connects with other regional lines for further travel options, enhancing accessibility to other destinations in the northern region of Portugal.