Here’s a magical and romantic 4-day bike trip itinerary through the Douro River Valley, Portugal, a region renowned for its terraced vineyards, charming villages, and breathtaking river views. This journey is designed for travelers of all ages and fitness levels, cycling approximately 50 km per day on relatively gentle terrain. You’ll experience the unique culture of Portugal, with its delicious cuisine, warm hospitality, and historic landmarks. The trip concludes with a scenic train ride back to your starting point, ensuring a seamless and relaxing end to your adventure.