Affiliate disclosure

What that means in practice

The booking buttons and the availability widgets here point at GetYourGuide, a licensed online travel agency. If you book within their attribution window they pay me a percentage of the tour price out of their own margin. Nothing is added to your fare and no price on this site is inflated to cover it.

What it does not change

What I write. The evidence is on the pages themselves: the option I point at most often for the sanctuary is the cheapest guided one of the 22, and one of the longer pages here argues that a €3.60 train from Porto may serve you better than any tour at all. Neither of those pays well. Both are what I would say standing at the bottom of the steps.

I take no payment from operators for coverage, for a kinder write-up, or for a place in a comparison table. No operator has seen a page here before it went live, and no operator is named by brand anywhere on this site — only by what the product is. Ratings and review counts come from the GetYourGuide listings, and every reviewer quoted on the review pages is a real person who left a real review. Where a tour has no reviews, the page says so in its first line rather than filling the gap.

The thing worth saying plainly

This site is about a place that charges nothing to enter. I earn only when somebody decides that a guide, or a lift from Porto, is worth paying for, which is a bias built into the arrangement. So the free option goes first on every page where it belongs, starting with the ticket page and the cost page, and the tours are compared on one page where the cheap ones sit beside the expensive ones. Judge the site against that.

Questions about any of it: contact me.