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Douro River Cruises | Riviera River Cruises | Riviera …
WEBFor 70 miles of the Douro’s 557-mile length, the river forms part of the national border between Spain and Portugal. Its narrow canyons made it a historical barrier for invasions, and an enduring cultural and linguistic …
The Douro, Porto and Salamanca River Cruise 2024 - Riviera Travel