Douro Valley › Affiliate disclosure
Affiliate disclosure
Updated 22 October 2026 · how this site earns money, on 1 page
Every tour here books on Viator, the booking platform behind the buttons. When you book through a button on this site, Viator pays a commission. That is the whole business; here is how it works.
Tours and boat trips
This site sells nothing. Each "See dates & prices" button opens the tour on Viator, at Viator's price, with Viator's booking and cancellation terms. Book there and Viator pays douroday.com a commission out of its own share. You pay the same as you would on Viator directly.
The commission decides nothing about the lists. All 337 Douro listings were read, 114 passed the bar and 127 sit in the lists. Inside a list, travellers' reviews and ratings set the order. What a tour pays never does. How the choosing works has the rules with the numbers.
What earns nothing
- Train tickets, museum entry and the tastings at the quintas: anything sold by CP, a public body or an estate on its own site. You get the fact and the seller's name; the site gets nothing.
- The places, the viewpoints, the weather and the questions. Information with no money attached.
Other partners
None today. If a car-rental or transfer partner ever appears here, this page names them, and the same 3 rules apply. The partner pays the commission. Your price stays the same. The recommendation is written before the partner is chosen.
Questions
Ask at hello@douroday.com or through the form. These get answered too, within 2 days.