Traditional boat tours can be quite crowded. This shared cruise, departing from Douro Marina, in Villa Nova de Gaia, is limited to 10 passengers. Navigate the Douro River, between Porto and Gaia, passing under six of the region's most famous bridges—including the Dom Luís I and the Arrábida—while appreciating the architecture of the banks, the waterfronts of both cities, the fishing Villa of Afurada, and the Port wine cellars in Gaia. At the mouth of the Douro, where the river meets the Atlantic Ocean, take a break to contemplate the view. Choose a time during the day or at sunset and toast the ride with a welcome drink aboard a classic vessel.