Visiting the Mira de Aire Caves was an extraordinary experience and without a doubt one of the most impressive natural wonders in Portugal. The descent into the cave is already exciting – you go down more than 600 steps, moving deeper and deeper underground, and with each level the atmosphere changes, the air becomes cooler, and the sense of mystery grows. The rock formations are simply breathtaking. Stalactites and stalagmites of all shapes and sizes fill the chambers, some delicate and thin like needles, others massive and sculptural, looking almost like works of art created by nature over millions of years. The lighting is beautifully arranged to highlight the natural patterns and colors of the stone, creating dramatic and magical scenes everywhere you look. What really impressed me was the scale of the cave. Some sections are narrow and winding, making you feel like an explorer, while others open up into huge halls with soaring ceilings that make you realize just how vast this underground world is. The echoes of dripping water and the play of light on the rock surfaces create an unforgettable atmosphere. Along the way, there are plenty of spots where you can stop and take in the view, admire the details, and imagine the slow natural process that shaped everything you see. It’s not just beautiful, it’s also humbling to realize that these formations took thousands upon thousands of years to form. By the time you reach the lower levels, the journey feels like a complete adventure – moving from chamber to chamber, discovering something new each time, and always surrounded by the impressive natural architecture of the cave. Overall, the Mira de Aire Caves are an absolute must-see for anyone who loves nature, geology, or simply wants to experience something truly unique. It’s one of those places that leaves you with a lasting memory and a deep appreciation for the hidden wonders of the earth.

A very beautiful and large cave. There are a lot of spots to take pictures. I would recommend calling an hour before you arrive to make sure there is not a long wait for the next tour to begin, as we had to wait 30 minutes. The group was very large and so took a lot longer then expected to move through the cave. We went with our small dog and chose to carry the dog as the floors were a little wet, and since the crowd was too big. It would have been a much better experience if they had slots for different languages with the amount of people that visit. There are staff that speak English very well so it should not be difficult to accommodate this option. P.s. if you don't speak Portuguese the alternative language audios require a pair of earphones to listen and follow.

Great experience. The tour starts with a short video giving some context about the cave history. After that we enter the cave with the guide following predefined route. The guide as kind and informative and through the route we got to see some amazing formations. Plenty of free parking is provided. Note that the end of the tour is not the same as the start and a 5/10min walk is required to get back.

The grutas were impressive. Tour guide will speak the language most people speak (in our case Portuguese), but you can download a great app with an informative audio guide in your preferred language. Definitely worth the trip.

Cave is really gorgeous. Tour only available in portuguese but not very comprehensive. Tour guide app available for free for non-portuguese speakers but difficult to listen to when in a group. Still worth the trip!

I found the cave to be less striking than anticipated. Its value seems to be more in its fascinating discovery history than its current presentation. Be prepared for wet floors and dripping water. ​The one-hour tour is poorly structured. It starts with a 15-minute film (Portuguese with English subtitles). For the main 40-minute walking segment, an English audio guide is available, but the guide's constant Portuguese commentary and stopping makes it nearly impossible to follow the English narration effectively. ​We only walked for about 10 minutes in total, which is frustrating given the cave's much larger size.

it's interesting, but don't have anything special. It's monotonous. They usually have big groups, which makes the experience rather uninteresting. My companion made the moment better.