Under 40s vacations
While all the trips on our site welcome under 40's travelers, the vacations in this section are either specifically designed for or are particularly popular with the ethically-conscious under 40's crowd. From sailing voyages around the Mediterranean to interrailing around Europe and beyond, these small group adventures will connect you with like-minded and similarly aged travelers to share your journey with.
84 Under 40s vacations found
Japan small group tours
Ready to say Kon’nichiwa to Japan? Let us show you how.
From £2,299 13 days ex flights
Small group travel:
2026: 28 Sep, 1 Oct, 4 Oct, 10 Oct, 13 Oct, 16 Oct, 22 Oct, 25 Oct, 28 Oct, 3 Nov, 6 Nov, 12 Nov, 18 Nov, 24 Nov, 27 Nov, 3 Dec, 6 Dec
Book now and save 5% off on this tour.
K-Pop tour in South Korea, 9 days
Explore K-Pop's birthplace in vibrant locations & cities
From £1,699 9 days ex flights
Small group travel:
2027: 5 Jul
Central Europe holiday for under 30's
Experience bohemian Europe from Germany to Italy
From US $2,450US $1,960 to US $2,855 15 days ex flights
Small group travel:
2026: 7 Nov
2027: 27 Mar, 10 Apr, 24 Apr, 8 May, 22 May, 29 May, 12 Jun, 19 Jun, 26 Jun, 10 Jul, 24 Jul, 7 Aug, 21 Aug, 28 Aug, 4 Sep, 11 Sep, 18 Sep, 9 Oct, 23 Oct, 6 Nov, 4 Dec
2028: 25 Mar, 8 Apr, 22 Apr, 6 May, 13 May, 20 May, 27 May, 10 Jun, 17 Jun, 24 Jun, 8 Jul, 15 Jul, 22 Jul, 5 Aug, 19 Aug, 26 Aug, 2 Sep, 9 Sep, 16 Sep, 7 Oct, 21 Oct, 4 Nov, 2 Dec
2027: 27 Mar, 10 Apr, 24 Apr, 8 May, 22 May, 29 May, 12 Jun, 19 Jun, 26 Jun, 10 Jul, 24 Jul, 7 Aug, 21 Aug, 28 Aug, 4 Sep, 11 Sep, 18 Sep, 9 Oct, 23 Oct, 6 Nov, 4 Dec
2028: 25 Mar, 8 Apr, 22 Apr, 6 May, 13 May, 20 May, 27 May, 10 Jun, 17 Jun, 24 Jun, 8 Jul, 15 Jul, 22 Jul, 5 Aug, 19 Aug, 26 Aug, 2 Sep, 9 Sep, 16 Sep, 7 Oct, 21 Oct, 4 Nov, 2 Dec
Up to US $490 off selected dates.
Late availability on these dates: 07 Nov
Late availability on these dates: 07 Nov
Under 35's Thailand tour
Love beaches? Love islands? Love cocktails? Love this trip!
From US $750US $638 to US $1,035 8 days ex flights
Small group travel:
2026: 4 Oct, 18 Oct, 25 Oct, 1 Nov, 8 Nov, 15 Nov, 22 Nov, 26 Nov, 6 Dec, 13 Dec, 20 Dec, 27 Dec, 31 Dec
2027: 3 Jan, 10 Jan, 14 Jan, 17 Jan, 21 Jan, 24 Jan, 31 Jan, 7 Feb, 14 Feb, 18 Feb, 21 Feb, 28 Feb, 7 Mar, 14 Mar, 21 Mar, 25 Mar, 28 Mar, 4 Apr, 11 Apr, 18 Apr, 25 Apr, 2 May, 16 May, 23 May, 6 Jun, 13 Jun, 20 Jun, 27 Jun, 11 Jul, 18 Jul, 25 Jul, 1 Aug, 15 Aug, 29 Aug, 12 Sep, 26 Sep, 3 Oct, 17 Oct, 31 Oct, 4 Nov ...
2027: 3 Jan, 10 Jan, 14 Jan, 17 Jan, 21 Jan, 24 Jan, 31 Jan, 7 Feb, 14 Feb, 18 Feb, 21 Feb, 28 Feb, 7 Mar, 14 Mar, 21 Mar, 25 Mar, 28 Mar, 4 Apr, 11 Apr, 18 Apr, 25 Apr, 2 May, 16 May, 23 May, 6 Jun, 13 Jun, 20 Jun, 27 Jun, 11 Jul, 18 Jul, 25 Jul, 1 Aug, 15 Aug, 29 Aug, 12 Sep, 26 Sep, 3 Oct, 17 Oct, 31 Oct, 4 Nov ...
Up to US $110 off selected dates.
Late availability on these dates: 04 Oct, 18 Oct, 25 Oct, 01 Nov, 08 Nov, 15 Nov, 22 Nov, 26 Nov, 06 Dec, 13 Dec, 20 Dec, 27 Dec, 31 Dec, 03 Jan
Late availability on these dates: 04 Oct, 18 Oct, 25 Oct, 01 Nov, 08 Nov, 15 Nov, 22 Nov, 26 Nov, 06 Dec, 13 Dec, 20 Dec, 27 Dec, 31 Dec, 03 Jan
Contact Us
Call us for a chat about our vacations. We are happy to discuss your vacation and help in any way we can. No bots, queues or awful hold music.
1-866-821-6866
Call toll free
Calling from outside the USA
rosy@responsibletravel.com
South Korea and Japan small group tour
Explore Japan & South Korea in 25 days
From £4,499 to £5,399 25 days ex flights
Small group travel:
2026: 5 Oct, 19 Oct
2027: 8 Mar, 15 Mar, 22 Mar, 5 Apr, 19 Apr, 3 May, 31 May, 14 Jun, 12 Jul, 6 Sep, 20 Sep, 4 Oct, 18 Oct, 25 Oct, 1 Nov
2027: 8 Mar, 15 Mar, 22 Mar, 5 Apr, 19 Apr, 3 May, 31 May, 14 Jun, 12 Jul, 6 Sep, 20 Sep, 4 Oct, 18 Oct, 25 Oct, 1 Nov
23 day tour of China, Shanghai loop
See the essentials of China in 23 days!
From £1,775 to £1,865 23 days ex flights
Small group travel:
2026: 12 Oct
2027: 15 Mar, 22 Mar, 29 Mar, 3 Apr, 10 May, 24 May, 7 Jun, 21 Jun, 5 Jul, 19 Jul, 9 Aug, 23 Aug, 4 Sep, 11 Oct, 18 Oct
2027: 15 Mar, 22 Mar, 29 Mar, 3 Apr, 10 May, 24 May, 7 Jun, 21 Jun, 5 Jul, 19 Jul, 9 Aug, 23 Aug, 4 Sep, 11 Oct, 18 Oct
South Africa small group tour
Best of South Africa in 12 days.
From £2,099 12 days ex flights
Small group travel:
2026: 1 Oct, 13 Oct, 19 Oct, 31 Oct, 6 Nov, 18 Nov, 24 Nov, 6 Dec
Book now and save 5% off on this tour.
New Zealand 17 day tour
The best of both islands in 17 days
From £2,399 17 days ex flights
Small group travel:
2026: 29 Sep, 2 Oct, 5 Oct, 14 Oct, 20 Oct, 26 Oct, 29 Oct, 4 Nov, 10 Nov, 16 Nov, 22 Nov, 28 Nov, 1 Dec, 4 Dec
Book now and save 5% off on this tour.
Thailand and Vietnam experience tour
Explore the best of Thailand and Vietnam in style
From £3,249 27 days ex flights
Small group travel:
2026: 26 Sep, 14 Oct, 26 Oct, 13 Nov, 25 Nov
Book now and save 5% off on this tour.
Best of Thailand adventure vacation
See the best of Thailand in style!
From £1,549 13 days ex flights
Small group travel:
2026: 26 Sep, 2 Oct, 8 Oct, 14 Oct, 20 Oct, 26 Oct, 1 Nov, 7 Nov, 10 Nov, 13 Nov, 19 Nov, 22 Nov, 25 Nov, 28 Nov, 1 Dec, 7 Dec
Book now and save 5% off on this tour.
Nepal budget adventure tour
Discover the culture & wildlife of Nepal!
From £1,199 to £1,329 13 days ex flights
Small group travel:
2026: 4 Oct, 1 Nov, 29 Nov
2027: 24 Jan, 14 Feb, 21 Mar, 11 Apr, 26 Sep, 24 Oct, 21 Nov
2027: 24 Jan, 14 Feb, 21 Mar, 11 Apr, 26 Sep, 24 Oct, 21 Nov
Get 10% off selected last minute 2026 departures - enquire for more info.
Intro to Vietnam vacation
The best of Vietnam in 9 or 12 days.
From £949 12 days ex flights
Small group travel:
2026: 26 Sep, 2 Oct, 6 Oct, 12 Oct, 14 Oct, 18 Oct, 20 Oct, 24 Oct, 26 Oct, 1 Nov, 5 Nov, 7 Nov, 11 Nov, 13 Nov, 17 Nov, 19 Nov, 21 Nov, 23 Nov, 25 Nov, 29 Nov, 1 Dec, 3 Dec, 5 Dec
Book now and save 5% off on this tour.
Budget Japan tour
See the essentials of Japan in 13 Days!
From £1,999 to £2,399 13 days ex flights
Small group travel:
2026: 5 Oct, 12 Oct, 19 Oct, 9 Nov
2027: 11 Jan, 15 Feb, 8 Mar, 15 Mar, 22 Mar, 29 Mar, 5 Apr, 12 Apr, 19 Apr, 3 May, 17 May, 31 May, 14 Jun, 28 Jun, 5 Jul, 12 Jul, 26 Jul, 16 Aug, 6 Sep, 20 Sep, 4 Oct, 18 Oct, 25 Oct, 1 Nov, 15 Nov, 29 Nov
2027: 11 Jan, 15 Feb, 8 Mar, 15 Mar, 22 Mar, 29 Mar, 5 Apr, 12 Apr, 19 Apr, 3 May, 17 May, 31 May, 14 Jun, 28 Jun, 5 Jul, 12 Jul, 26 Jul, 16 Aug, 6 Sep, 20 Sep, 4 Oct, 18 Oct, 25 Oct, 1 Nov, 15 Nov, 29 Nov
Get 15% off selected September 2026 departures - enquire for more info.
India experience 13 day tour
The absolute best of India in 13 days!
From £1,249 13 days ex flights
Small group travel:
2026: 27 Sep, 7 Oct, 15 Oct, 25 Oct
Book now and save 5% off on this tour.
Contact Us
Call us for a chat about our vacations. We are happy to discuss your vacation and help in any way we can. No bots, queues or awful hold music.
1-866-821-6866
Call toll free
Calling from outside the USA
rosy@responsibletravel.com
New Zealand 9 day tour
9 epic days exploring the North of New Zealand
From £1,149 9 days ex flights
Small group travel:
2026: 29 Sep, 2 Oct, 5 Oct, 14 Oct, 20 Oct, 26 Oct, 29 Oct, 4 Nov, 10 Nov, 16 Nov, 22 Nov, 28 Nov, 1 Dec, 4 Dec
Book now and save 5% off on this tour.
Bolivia salt flats tour from La Paz
Expedition through the Uyuni Salt Flats in southwest Bolivia
From US $621 to US $672 5 days ex flights
Small group travel:
2026: 26 Sep, 27 Sep, 28 Sep, 29 Sep, 30 Sep, 1 Oct, 2 Oct, 3 Oct, 4 Oct, 5 Oct, 6 Oct, 7 Oct, 8 Oct, 9 Oct, 10 Oct, 11 Oct, 12 Oct, 13 Oct, 14 Oct, 15 Oct, 16 Oct, 17 Oct, 18 Oct, 19 Oct, 20 Oct, 21 Oct, 22 Oct, 23 Oct, 24 Oct, 25 Oct, 26 Oct, 27 Oct, 28 Oct, 29 Oct, 30 Oct, 31 Oct, 1 Nov, 2 Nov, 3 Nov, 4 Nov, 5 Nov, 6 Nov, 7 Nov, 8 Nov, 9 Nov, 10 Nov, 11 Nov, 12 Nov, 13 Nov, 14 Nov, 15 Nov, 16 Nov, 17 Nov, 18 Nov, 19 Nov, 20 Nov ...
Wildlife conservation vacation, Greece
Kalamos island research & conservation in the Ionian Sea
From €300 15 days ex flights
Tailor made:
This trip can be tailor made throughout the year to suit your requirements
Philippines Island tour, explorer
13 or 17 days of adventure in tropical paradise
From £1,649 17 days ex flights
Small group travel:
2026: 28 Sep, 4 Oct, 10 Oct, 16 Oct, 22 Oct, 25 Oct, 28 Oct, 31 Oct, 3 Nov, 6 Nov, 9 Nov, 12 Nov, 15 Nov, 18 Nov, 24 Nov, 27 Nov, 30 Nov, 3 Dec, 6 Dec, 9 Dec
Book now and save 5% off on this tour.
Grand tour of India
Dive into the rich and vibrant culture of India
From £1,199 to £1,479 17 days ex flights
Small group travel:
2026: 14 Nov
2027: 9 Jan, 6 Feb, 27 Feb, 27 Mar, 11 Sep, 9 Oct, 13 Nov
2027: 9 Jan, 6 Feb, 27 Feb, 27 Mar, 11 Sep, 9 Oct, 13 Nov
Laos and Thailand budget tour 18-35s
Get to know authentic Laos in this 13-day action adventure
From US $1,335US $1,068 to US $1,590 13 days ex flights
Small group travel:
2026: 13 Oct, 24 Nov, 8 Dec, 29 Dec
2027: 5 Jan, 16 Feb, 23 Mar, 30 Mar, 18 May, 6 Jul, 20 Jul, 14 Sep, 12 Oct, 2 Nov, 23 Nov, 28 Dec
2028: 4 Jan, 18 Jan, 15 Feb, 21 Mar, 28 Mar, 16 May, 4 Jul, 18 Jul, 12 Sep, 10 Oct, 31 Oct, 21 Nov, 26 Dec
2027: 5 Jan, 16 Feb, 23 Mar, 30 Mar, 18 May, 6 Jul, 20 Jul, 14 Sep, 12 Oct, 2 Nov, 23 Nov, 28 Dec
2028: 4 Jan, 18 Jan, 15 Feb, 21 Mar, 28 Mar, 16 May, 4 Jul, 18 Jul, 12 Sep, 10 Oct, 31 Oct, 21 Nov, 26 Dec
Up to US $260 off selected dates.
Late availability on these dates: 13 Oct, 24 Nov, 08 Dec, 29 Dec
Late availability on these dates: 13 Oct, 24 Nov, 08 Dec, 29 Dec
18-29s vacation in Central America
Explore Mexico, Belize and Guatemala
From US $1,640US $1,394 to US $1,875 16 days ex flights
Small group travel:
2026: 6 Oct, 20 Oct, 3 Nov, 1 Dec, 15 Dec, 29 Dec
2027: 5 Jan, 12 Jan, 19 Jan, 2 Feb, 16 Feb, 2 Mar, 16 Mar, 30 Mar, 6 Apr, 20 Apr, 4 May, 25 May, 8 Jun, 22 Jun, 13 Jul, 27 Jul, 10 Aug, 24 Aug, 7 Sep, 21 Sep, 5 Oct, 19 Oct, 2 Nov, 16 Nov, 23 Nov, 30 Nov, 14 Dec, 28 Dec
2028: 4 Jan, 11 Jan, 18 Jan, 1 Feb, 15 Feb, 29 Feb, 14 Mar, 28 Mar, 4 Apr, 18 Apr, 25 Apr, 2 May, 23 May, 6 Jun, 20 Jun, 27 Jun, 11 Jul, 25 Jul ...
2027: 5 Jan, 12 Jan, 19 Jan, 2 Feb, 16 Feb, 2 Mar, 16 Mar, 30 Mar, 6 Apr, 20 Apr, 4 May, 25 May, 8 Jun, 22 Jun, 13 Jul, 27 Jul, 10 Aug, 24 Aug, 7 Sep, 21 Sep, 5 Oct, 19 Oct, 2 Nov, 16 Nov, 23 Nov, 30 Nov, 14 Dec, 28 Dec
2028: 4 Jan, 11 Jan, 18 Jan, 1 Feb, 15 Feb, 29 Feb, 14 Mar, 28 Mar, 4 Apr, 18 Apr, 25 Apr, 2 May, 23 May, 6 Jun, 20 Jun, 27 Jun, 11 Jul, 25 Jul ...
Up to US $240 off selected dates.
Late availability on these dates: 06 Oct, 20 Oct, 03 Nov, 01 Dec, 15 Dec, 29 Dec
Late availability on these dates: 06 Oct, 20 Oct, 03 Nov, 01 Dec, 15 Dec, 29 Dec
Backpacking tour of Thailand and Laos
Travel Southeast Asia on an affordable 13, 20 or 31 day tour
From £1,279 31 days ex flights
Small group travel:
2026: 28 Sep, 2 Oct, 5 Oct, 9 Oct, 12 Oct, 16 Oct, 19 Oct, 23 Oct, 26 Oct, 30 Oct, 2 Nov, 6 Nov, 9 Nov, 13 Nov, 16 Nov, 20 Nov, 23 Nov, 27 Nov, 30 Nov, 4 Dec, 7 Dec, 11 Dec, 14 Dec, 18 Dec, 21 Dec, 25 Dec, 28 Dec
2027: 1 Jan, 4 Jan, 8 Jan, 11 Jan, 15 Jan, 18 Jan, 22 Jan, 25 Jan, 29 Jan, 1 Feb, 5 Feb, 8 Feb, 12 Feb, 15 Feb, 19 Feb, 22 Feb, 26 Feb, 1 Mar, 5 Mar, 8 Mar, 12 Mar, 15 Mar, 19 Mar, 22 Mar, 26 Mar, 29 Mar, 2 Apr ...
2027: 1 Jan, 4 Jan, 8 Jan, 11 Jan, 15 Jan, 18 Jan, 22 Jan, 25 Jan, 29 Jan, 1 Feb, 5 Feb, 8 Feb, 12 Feb, 15 Feb, 19 Feb, 22 Feb, 26 Feb, 1 Mar, 5 Mar, 8 Mar, 12 Mar, 15 Mar, 19 Mar, 22 Mar, 26 Mar, 29 Mar, 2 Apr ...
South Korea vacation
Discover the gems of South Korea in 12 Days!
From £1,899 to £2,059 12 days ex flights
Small group travel:
2026: 4 Oct, 18 Oct, 1 Nov, 15 Nov
2027: 7 Mar, 21 Mar, 28 Mar, 4 Apr, 18 Apr, 2 May, 16 May, 23 May, 13 Jun, 27 Jun, 25 Jul, 15 Aug, 22 Aug, 29 Aug, 19 Sep, 3 Oct, 17 Oct, 31 Oct, 7 Nov, 14 Nov
2027: 7 Mar, 21 Mar, 28 Mar, 4 Apr, 18 Apr, 2 May, 16 May, 23 May, 13 Jun, 27 Jun, 25 Jul, 15 Aug, 22 Aug, 29 Aug, 19 Sep, 3 Oct, 17 Oct, 31 Oct, 7 Nov, 14 Nov
Mykonos sailing vacation for 18-35s
Island hopping and party vibes on a gulet cruise
From £689 to £859 8 days ex flights
Small group travel:
2027: 1 May, 8 May, 15 May, 22 May, 29 May, 5 Jun, 12 Jun, 19 Jun, 26 Jun, 3 Jul, 10 Jul, 17 Jul, 24 Jul, 31 Jul, 7 Aug, 14 Aug, 21 Aug, 28 Aug, 4 Sep, 11 Sep, 18 Sep, 25 Sep, 2 Oct, 9 Oct, 16 Oct
Taiwan 12 day small group tour
Explore all that Taiwan has to offer in 12-days!
From £2,199 to £2,299 12 days ex flights
Small group travel:
2026: 12 Nov
2027: 25 Mar, 15 Apr, 20 May, 9 Sep, 28 Oct, 18 Nov
2027: 25 Mar, 15 Apr, 20 May, 9 Sep, 28 Oct, 18 Nov
Get 15% off selected September 2026 departures - enquire for more info.
Southeast Asia 31 day tour
An action packed adventure awaits - 4 countries in 31 days
From £2,299 to £2,549 4 weeks ex flights
Small group travel:
2026: 12 Oct, 2 Nov
2027: 4 Jan, 18 Jan, 25 Jan, 8 Feb, 15 Feb, 22 Feb, 8 Mar, 22 Mar, 5 Apr, 19 Apr, 10 May, 7 Jun, 21 Jun, 5 Jul, 19 Jul, 2 Aug, 16 Aug, 6 Sep, 4 Oct, 1 Nov
2027: 4 Jan, 18 Jan, 25 Jan, 8 Feb, 15 Feb, 22 Feb, 8 Mar, 22 Mar, 5 Apr, 19 Apr, 10 May, 7 Jun, 21 Jun, 5 Jul, 19 Jul, 2 Aug, 16 Aug, 6 Sep, 4 Oct, 1 Nov
Get 10% off selected last minute 2026 departures - enquire for more info.
Best of Mexico tour
Explore the best of Mexico in 14 days
From £2,299 14 days ex flights
Small group travel:
2026: 28 Sep, 16 Oct, 4 Nov, 22 Nov, 10 Dec
Book now and save 5% off on this tour.
Hong Kong to Chengdu tour
China tour perfect for those short on time
From £789 to £839 11 days ex flights
Small group travel:
2026: 11 Oct
2027: 14 Mar, 21 Mar, 28 Mar, 2 Apr, 9 May, 23 May, 6 Jun, 20 Jun, 4 Jul, 18 Jul, 22 Aug, 3 Sep, 10 Oct, 17 Oct
2027: 14 Mar, 21 Mar, 28 Mar, 2 Apr, 9 May, 23 May, 6 Jun, 20 Jun, 4 Jul, 18 Jul, 22 Aug, 3 Sep, 10 Oct, 17 Oct
Cambodia 10 day tour
The absolute best of Cambodia in 10 days
From £849 10 days ex flights
Small group travel:
2026: 29 Sep, 3 Oct, 5 Oct, 7 Oct, 13 Oct, 17 Oct, 23 Oct, 25 Oct, 29 Oct, 31 Oct, 4 Nov, 6 Nov, 12 Nov, 16 Nov, 18 Nov, 22 Nov, 24 Nov, 28 Nov, 30 Nov, 2 Dec, 4 Dec, 6 Dec, 10 Dec, 12 Dec
Book now and save 5% off on this tour.
Highlights of China tour, 27 days
See the essentials of China in 27 days!
From £2,249 to £2,349 27 days ex flights
Small group travel:
2026: 11 Oct
2027: 14 Mar, 21 Mar, 28 Mar, 2 Apr, 9 May, 23 May, 6 Jun, 20 Jun, 4 Jul, 18 Jul, 8 Aug, 22 Aug, 3 Sep, 10 Oct, 17 Oct
2027: 14 Mar, 21 Mar, 28 Mar, 2 Apr, 9 May, 23 May, 6 Jun, 20 Jun, 4 Jul, 18 Jul, 8 Aug, 22 Aug, 3 Sep, 10 Oct, 17 Oct
