Portuguese Coastal Path: Porto to Santiago de Compostela is a 165.2 mile moderately trafficked point-to-point trail located near Porto, Porto and the North, Portugal that features a river and is rated as difficult. The trail offers a number of activity options.
This is the shorter coastal route of the Camino Português. It starts in the city of Porto, this route, first traveled by Queen Isabel of Portugal in the 12th century, heads north following the Atlantic coast of Portugal and Spain. You can find the longer coastal route starting in the city of Lisbon here: https://www.alltrails.com/trail/portugal/lisbon/camino-portugues-coastal-lisbon-to-santiago-del-compostela This route also goes through smaller towns, and as it is on the coast the weather is more moderate than the inland route, you can find the central route here: https://www.alltrails.com/trail/portugal/porto/the-portuguese-way-of-saint-james-central-route