Nature · Adventure · Connection
4x4 tours and trekking in Serra da Estrela
that stay with you for life.
We craft Experiences in the Serra da Estrela and Expeditions across Portugal. Local guides, small groups — turning small moments into BIG MEMORIES.
RNAAT 681/2022 Reply within 24h No online pre-payment Free cancellation up to 48h
40 adventurers rated us on Google
GetYourGuide — Trusted brand across the mountains
Tripadvisor — Travelers' Choice rising business
Discover what makes us unique
From mountain peaks to starlit skies — experience Portugal in ways you never imagined possible.
How it works
In 3 simple steps, you're ready for the adventure.
- 01
Choose your experience
Browse the options by category and find the one that suits your style.
- 02
Request without commitment
Send a booking request — we confirm by email or WhatsApp within 24 hours.
- 03
Live the adventure
We depart from Guarda, Manteigas, Seia or Covilhã — the exact spot is agreed with you. The rest is on the mountain.
Most Requested
The experiences our visitors ask for the most.
Sunset 4x4 Tour
Our most requested experience — the magical hues of Serra da Estrela at dusk, in a private jeep.
Shared 4x4 Tour
Small-group adventure in Serra da Estrela, ideal for families and couples.
Sunset Douro Boat Tour
Enjoy a magical Douro sunset with a drink on board.
The numbers, and where they come from
Every review is public and verifiable on all three platforms.
- 4.9★average
- 9140 Google · 16 Tripadvisor · 35 GetYourGuide
- 5+ yearsguiding in Serra da Estrela
About Us
100 Montanhas — Small Moments, BIG MEMORIES
100 Montanhas is a nature tourism company based in the Serra da Estrela, born to bring people closer to the mountains in an authentic, safe and unforgettable way.
We organise guided trekking, 4x4 expeditions, night hikes and stargazing tours in Serra da Estrela and other regions of Portugal — always with certified local guides.
More than tours, we create real moments of connection with nature, self-overcoming and freedom — in small groups, with close guidance and absolute respect for the mountain.
If you're looking to truly experience Serra da Estrela, you're in the right place.


Small Groups
Closer, more authentic and personalised experiences on every tour.
Safety Always
Certified guides and quality equipment — RNAAT 681/2022, recognised by ICNF.
Respect for Nature
We practice responsible tourism, preserving the mountain that inspires us.
What our guests say
Verified reviews · 4.9★ across 91 reviews
This tour was such an amazing experience! Sergio was great, super easy to contact and very knowledgeable. He was very friendly and easy to talk to the whole time, showed us some of the most beautiful views!! My husband and I decided to do this as part of our honeymoon and it was perfect!
Sergio was fabulous! So enthusiastic and fun. We saw way more than we could ever have done on our own. We travelled roads I would not have even attempted. Sergio was always thinking ahead altering the route to accommodate ever changing weather conditions. This tour was a major highlight of our time in northern Portugal
Sergio was an amazing and well educated guide. He was attentive and engaging. We can also tell he loves what he's doing and will definitely recommend to our friends and family. Thank you Sergio!
Sérgio was knowledgeable and kept us entertained the entire tour. We would highly recommend him and book him again. He was also able to advise us on restaurants near our hotel and offer insight for further trips in the future.
Sergio was very friendly and accommodating and picked us up at our hotel as well as dropping us off there making it very convenient and easy for us. He served us delicious food and wine and was very knowledgeable about all the details of the mountain. He was extremely informative.
This was a wonderful 4 hour long trip in a 4 wheel drive vehicle in the high Estrella Mountains. The scenery was amazing and we got to see places we would not have been able to access otherwise. Our guide Sergio, was very friendly, knowledgeable and informative and even brought delicious local wine and cheese for us. I would highly recommend this trip to everyone.
He knows all about the area and is willing to share all his knowledge. We had a fantastic trip and some very interesting discussions. We can highly recommend this tour for everyone with interest in local history/culture. And the nature is stunning.
Sergio is not only a phenomenal guide, passionate about history, geography, art, and literature — he's also a truly exceptional person who goes above and beyond expectations. His thorough explanations, his ability to connect personal stories to the tour experience, and his wonderful sense of humor and warmth make the entire trip deeply enjoyable.
Great thoughtful guide . A lovely experience
Very cool! We really enjoyed our evening with Sérgio!
Frequently Asked Questions
Do I need previous experience?
No. Our activities are designed for all levels. The guide adapts the pace and difficulty to the group, so anyone in reasonable physical condition can join.
What happens if the weather is bad?
We assess conditions in the 24h before. If it's unsafe to go ahead, we'll reschedule or fully refund. Light rain usually doesn't cancel — the mountain is beautiful under clouds too.
How do I book and pay?
Book through the online form or WhatsApp. We confirm availability within 24 hours. Payment is made after confirmation via bank transfer or MB Way — nothing is charged before we confirm.
What is the cancellation policy?
Free cancellation up to 48h before the activity, with full refund. Within 48h, the date can be changed subject to availability.
What languages are the activities run in?
Our guides run the activities in Portuguese, English and Spanish. If you would prefer another language, tell us when booking and we will confirm availability.
Are the activities suitable for people with reduced mobility?
It depends on the activity. The 4x4 tours and the Douro boat tours are the most accessible, since most of the time is spent in the vehicle or on board, with short stops. Trails and night hikes involve uneven ground. Talk to us before booking and we will point you to the best option.
Do you cater for vegetarians or food allergies?
For experiences that include a meal or tasting, tell us about any dietary restrictions when booking. We confirm them in advance with the local producers and restaurants we work with.
Where is the meeting point?
Most activities start in Guarda, Manteigas, Seia or Covilhã. The exact spot is confirmed after booking. For groups of 4+, we can arrange pickup at accommodations nearby.
Can I bring children?
Yes, on most experiences. 4x4 activities are suitable from age 4; long treks from age 10. Mention ages on the form and we'll recommend the best fit.
Where do the boat tours depart from?
All our boat tours depart from Pinhão, the heart of the Douro wine region.
Can I book privately?
Yes. We offer private boat tours and can arrange private 4x4 tours on request — perfect for celebrations or families.
Ready for your next adventure?
Talk to us — we reply within 24 hours, 7 days a week.
Book without commitment Free cancellation up to 48h before




