The 10 best Costa Rica tours for young adults (2026)
Ranked by verified traveller ratings — never by payment · prices live-tracked
The short answer
The best-reviewed Costa Rica tour for 18–35s right now is Costa Rica Adventure by TruTravels — 4.8★ across 572 verified reviews, from £810. The top 10 below run £81–£230 per day; all 20 qualifying Costa Rica trips are on the destination page.
How this ranking works
Every Costa Rica trip in our catalogue with a verified rating and at least 25 reviews qualifies (20currently). They're ordered by review-weighted quality — rating multiplied by the logarithm of review volume — so a 4.8★ from 900 travellers outranks a 5.0★ from a dozen. No operator can pay to appear here or to move up; sponsored placement elsewhere on this site is always labelled. Prices are the live from-prices we track daily and update automatically.