Authentic Trails runs 3 trips for 18–35s on 18-35.travel, across Portugal. We show them with the honest all-in cost, who's going, and our genuine fit ranking — the same neutral treatment every operator gets.
3 trips
5
from £1,520Portugal · 8 days
Porto to Lisbon self-guided bike tour
~£1,745 all-in · avg 39
Big nightsFast paceSolo-friendly
by Authentic Trails
5
from £1,110Portugal · 8 days
Minho to Porto self-guided bike tour
~£1,330 all-in · avg 39
Big nightsFast paceSolo-friendly
by Authentic Trails
5
from £2,215Portugal · 8 days
Porto to Lisbon Premium self-guided bike tour
~£2,440 all-in · avg 39
Big nightsFast paceSolo-friendly
by Authentic Trails
Read before you go
See allGood to know
Is Authentic Trails good for 18–35s?
These are their trips that suit the 18–35 band. We rank them on genuine fit, not on any commercial relationship — and we flag party level, pace, and who's going so you can judge for yourself.
Can I compare Authentic Trails with other operators?
Yes. Take the 90-second match and we'll put the best-fit trips — from Authentic Trails and everyone else — side by side on cost-per-day, what's included, and who's going.