
The Hidden Valley, a Mission to Protect the Local Porto Heritage
Pick your date
Highlighted days have spots open. Grey days are sold out or not running.
September 2026
Loading live availability
Who is going?
Adults
Age 13 and over
Children
Age 12 and under
Select a highlighted day to see live departure times and the exact price for your group.
Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
4.6/5
Based on 9 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is The Hidden Valley, a Mission to Protect the Local Porto Heritage worth booking?
The Hidden Valley, a Mission to Protect the Local Porto Heritage is a 2.5-hour experience in Porto, Portugal, from $12 per person. It scores 63 out of 100 on the Outty Ranking, which we label “Solid Choice”, based on a 4.6/5 rating across 9 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 63 / 100
- Rating
- 4.6/5 (9)
- Duration
- 2.5 hours
- From
- $12 per person
In this mission, the city of Porto, one of the best European destinations today, is the target of espionage. The spies of GLOOM, the world’s most dangerous and secretive international organization, intend to copy its cha
What you get
About this experience
In this mission, the city of Porto, one of the best European destinations today, is the target of espionage. The spies of GLOOM, the world’s most dangerous and secretive international organization, intend to copy its charms to other cities worldwide. A mission where players are challenged to protect the city as secretively as possible. “The secret of getting ahead is getting the mission started"
What's included
Included
- All Fees and Taxes
- Starting documents
Where it starts and ends
Meeting point
Porto
This mission starts at Ageas Porto Coliseum, located at Rua de Passos Manuel 137, 4000-385 Porto.
Hotel pickup
No pickup: everyone meets at the start point.
Ends at
This mission starts at Ageas Porto Coliseum, located at Rua de Passos Manuel 137, 4000-385 Porto.
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- pt, en
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 7 travelers per booking
- Operated by
- Foxtrail Portugal
Know before you go
- Public transportation options are available nearby
- Travelers should have a high level of physical fitness
- Not recommended for people with special needs
Photos




What travelers are saying
Outty’s summary of the themes that recur across 9 traveler reviews. Written by us, not quoted from reviewers.
Good for families
3 mentionsReviewers traveling with kids report it landed well with their group.
Traveler reviews
9 verified traveler reviews for The Hidden Valley, a Mission to Protect the Local Porto Heritage. Ratings and reviews provided by Viator and Tripadvisor.
The event didn't take...
The event didn't take place, no one from Foxtrail met us and they didn't answer the phone. Waiting for a refund.
via Viator
Perhaps the coolest outdoor activity in Porto at the moment.
Great walk, clever riddles and funny tasks to solve. It is really a cool mix of escape room tasks with treasure hunting outdoors. Children loved it.
Response from the operator: Hello! Thank you for the feedback. Foxtrail is really for everyone!
via Tripadvisor
Team building 5 stars!
A unique experience to know an interesting area of Porto. We loved the games and we managed to finish our mission! Optima choice for team building events.
Response from the operator: Olá, Sara! Obrigada pelo ótimo feedback! Ficamos felizes por esse evento de team building ter passado pela Foxtrail. Esperamos que nos escolham novamente!
via Tripadvisor (translated)
We will definitely try this in another location
I had a great time playing, looking for the clues and deciphering the riddles! We will definitely do it again
Response from the operator: Hello, Tom! Thank you very much for the feedback! Always happy to have players like you.
via Viator
Our second foxtrail, once again really happy with the choice!
We really liked the game, the clues are fun and challenging, and the courses are quite interesting. I highly recommend!
Response from the operator: Hello! Thank you for the feedback. I guess that everything about Porto is quite interesting, right? Hope to have you on another mission really soon!
via Viator
Good to know
- Duration
- 2.5 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Every day
- Price range
- $12 to $19
- Hotel pickup
- No pickup, meet at start point
- Booked in 30 days
- 3
- Verdict
- Solid Choice
Why this scores 63
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
The Hidden Valley, a Mission to Protect the Local Porto Heritage: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Porto.
How much does The Hidden Valley, a Mission to Protect the Local Porto Heritage cost?
+
Prices start at $12 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Porto usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does The Hidden Valley, a Mission to Protect the Local Porto Heritage take?
+
Plan for about 2.5 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Porto is not rushed.
Is The Hidden Valley, a Mission to Protect the Local Porto Heritage worth it?
+
It holds an Outty Ranking of 63 out of 100, which we label "Solid Choice". That score blends traveler sentiment (4.6/5 across 9 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Porto, and how flexible the cancellation terms are.
Can I cancel or reschedule The Hidden Valley, a Mission to Protect the Local Porto Heritage?
+
Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is The Hidden Valley, a Mission to Protect the Local Porto Heritage suitable for kids and families?
+
Yes, all ages are welcome. Families should still weigh the 2.5-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book The Hidden Valley, a Mission to Protect the Local Porto Heritage?
+
Around 3 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Porto can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
+
Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Porto and add a light layer if any part of the 2.5-hour experience runs outdoors or after sunset.
Where does The Hidden Valley, a Mission to Protect the Local Porto Heritage start and how do I get there?
+
The exact meeting point and directions are on your voucher once you book, and they sit in central Porto within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Porto?
+
On Outty we rank every Porto experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include The Unvanquished Tour in Porto City Center, Porto's #1 Walking Tour, Small Group Geres National Park Full Day with picnic from Porto. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Porto?
+
Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Porto?
+
Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
+
Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
Ready to lock in your spot?
Pick a date, choose your group, and see the exact price for The Hidden Valley, a Mission to Protect the Local Porto Heritage.
Pick your date





