Nature · Adventure · Connection
Serra da Estrela adventures
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 481/2022 · Reply within 24h · No online pre-payment · Free cancellation up to 48h
39 adventurers rated us on Google
GetYourGuide — Trusted brand across the mountains
Tripadvisor — Travelers' Choice rising business
- RNAAT 481/2022 · Recognised by ICNF
- Small groups
- Local guides
- Safety first
- Responsible tourism
- Cancel up to 48h
- 7-day support
- RNAAT 481/2022
- ICNF recognised
- 5+ years guiding
What our guests say
“Incredible sunset experience. The guide knew every viewpoint and made the tour unforgettable.”
“Booked with zero prepayment. Reply on WhatsApp within minutes. I recommend it with my eyes closed.”
“A magical night hike — absolute silence and a starry sky. Worth every euro.”
Limited Edition · September 2026
Douro Wild Expedition
3 days between cliffs, historic vineyards and the tunnel route. One expedition. Seven seats.
Until the next expedition
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.
Choose your experience
Browse the options by category and find the one that suits your style.
Request without commitment
Send a booking request — we confirm by email or WhatsApp in under 1h.
Live the adventure
We meet at the agreed point. The rest is on the mountain — and on us.
Most Popular
The experiences our guests love most — and the ones we love guiding.
Sunset 4x4 Tour
Our most popular tour — the magical hues of Serra da Estrela at dusk, in a private jeep.
View & Book
Shared 4x4 Tour
Small-group adventure in Serra da Estrela, ideal for families and couples.
View & Book
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 481/2022, recognised by ICNF.
Respect for Nature
We practice responsible tourism, preserving the mountain that inspires us.
What Our Guests Say
“An incredible experience! The guide knew every corner of the mountain. Easily the best activity we did in Portugal.”
“The stargazing exceeded every expectation. The sky over Serra da Estrela is simply magical.”
“Three perfect days of trekking — spectacular trails, home-cooked food and a fantastic team. We'll be back!”
Ready for Your Next Adventure?
Talk to us — we reply in under 1 hour, 7 days a week.
Book without commitment · Free cancellation up to 48h before