3D.co.uk
Specializes in residential education courses, summer camps, active family holidays and business events.
http://www.3d.co.uk/

ActionQuest
Three week live-abroad summer camps for teenagers aged 13 to 19 offering multilevel water sports training and certification courses in sailing, PADI scuba diving, wakeboarding, water skiing, windsurfing, exploration and adventure. Programmes are available in the Caribbean, Galapagos Islands, Mediterranean Sea, Tahiti and Australia.
http://www.actionquest.com/

Adventure Activities Licensing Scheme
A government scheme to ensure adventure activity providers meet set safety criteria.
http://www.aals.org.uk/

Adventure Kids
Advice on picking the right camp for your kids, as well as a comprehensive searchable database.
http://www.21stcenturyadventures.com/AdventureKids/

American Camping Association
Search from over 2,300 ACA accredited camps in the US using a range of criteria.
http://www.acacamps.org/

American Museum of Natural History
Each year the American Museum of Natural History, which is located in New York City, runs summer camps for kids interested in the following fields: paleontology, archeology, herpetology and astro physics.
http://www.amnh.org/education/summercamp.html?src=k_p

Amigos de las Americas
Leadership training and volunteer service opportunities in the United States and Latin America for youths.
http://www.amigoslink.org/

Aspen Achievement Academy
Runs licensed wilderness therapy programmes in Utah for troubled teens.
http://www.aspenacademy.com/

Barracudas
Currently operate 21 activity camps in the South East of England.
http://www.barracudas.co.uk/

British Activity Holiday Association
Search for day camps, summer camps and multi-activity centres throughout Britain.
http://www.baha.org.uk/

Camp Beaumont
Britain's leading summer camp and day camp operator.
http://www.campbeaumont.com/
http://www.daycamps.co.uk/

Camp Channel
Search for camps in the US and worldwide using specific criteria.
http://www.campchannel.com

Camp Down Under
Camp Down Under runs a three week summer camp for teenagers, along with English tuition camps for non-English speaking students.
http://www.campdownunder.com.au

Camp Page
A comprehensive listing of summer camps and wilderness programmes for youth in the United States and Canada.
http://www.camppage.com

Camp Search
Camp search engine.
http://www.campsearch.com/

Council on Standards for International Educational Travel
A non-profit organization that works to formulate standards for and to identify reputable international youth exchange programs.
http://www.csiet.org/

Do It 4 Real
Summer camps for 10 to 17 year olds that offer great value for money.
http://www.doit4real.co.uk/

EAC
High adrenaline adventure, professional sports coaching and all kinds of creative fun for 5-16's. Choose from one of 15 day or residential camps.
http://www.eacworld.com/
http://www.activitycamps.com/
http://www.eac-summer-activity-camps.co.uk/

Education First Tours
Student who go on an EF Tour not only discover exciting new places, but earn high school credits in the process.
http://www.eftours.com/

Federation EIL
An international non-profit association that promotes intercultural learning experiences through homestays, group travel, study abroad, language training, work exchange and other cultural immersion programmes.
http://www.experiment.org/

Fun Factory
Resorts in several locations that provide a full day of activities to keeps your kids fully occupied.
http://www.kidsfunfactory.com/

Global Works
Community service, language learning and adventure travel for high school students.
http://www.globalworksinc.com/

goCamps.com
International directory of residential and day camps for kids.
http://www.gocamps.com/

Kids Camps.com
An excellent camp directory which covers locations worldwide.
http://www.kidscamps.com/

Kids Klub
Specialize in adventure activity holidays, sports and educational courses, tours, ski and snowboard trips.
http://www.kidsklub.co.uk/

Mill on the Brue
A Somerset-based company offering children's multi-activity holidays, school trips, and adult outdoor adventure courses.
http://www.millonthebrue.co.uk/

National Camp Association, Inc.
Advice on how to choose the right summer camp for your kids. The site also offers parents a free personalized guidance and referral service to summer camps worldwide.
http://www.summercamp.org

Natural History Museum of Los Angeles County
Tax deductible family learning tours to destinations worldwide.
http://www.nhm.org/travel/home.html

Passports
Educational travel tours for high school and college students, their teachers and professors and adults.
http://www.passports.com/

PGL
The UK's leading provider of activity, adventure and educational holidays, tours, and courses for 7-17 year olds and their families.
http://www.pgl.co.uk/

Putney Student Travel
Offers educational summer tours in the following categories: Cultural Exploration, Language Learning, Community Service, Global Awareness in Action, as well as academic Excel programs at Williams College, Amherst College, Oxford/Tuscany, Paris/Provence, and Madrid/Barcelona.
http://www.goputney.com/

SeaTrek
SeaTrek offers tropical summer camp adventure programmes in the British Virgin Islands for youngsters that include sailing, scuba diving and marine biology expeditions.
http://www.seatrekbvi.com/

Smithsonian Institute
Find out more about the instructor lead, inter-generational study tours aimed at families with children aged between 7-18 years.
http://www.smithsonianstudytours.org/sst/uscan/tp-family.htm

Soccer Camp
Soccer and activities for kids aged between 6 and 16 on Spain's Costa del Sol.
http://www.soccercampmarbella.com/

Soundwall Music
Summer rock n' roll music camp for 12-17 year olds.
http://www.rockcamp.org/

Space Camp
Want to train like a real astronaut? At Space Camp, you can fly on a realistic simulated shuttle mission and even experience weightlessness - a great way to spend five days. Ages 9 through to adult. You will find branches at the following locations: Huntsville, Alabama; Titusville, Florida; Japan; Belgium; Turkey; Canada.
http://www.spacecamp.com/

Student Ambassador Programs
Provides opportunities for grade school, junior high and senior high students to explore domestic and foreign destinations, and learn more about the culture and background of the places they visit.
http://www.studentambassadors.org/

Student Youth Travel Association
Professional trade association for the student and youth travel sector.
http://www.syta.org/

Stunt Camp
Stunt Camp offers 11-15 year olds the opportunity to experience real movie stunts under the direction of a professional movie crew.
http://www.stuntcamp.co.uk/

Summer Camps.com
Online camp directory.
http://www.summercamps.com/

Summer Fun
Offers a range of activity, enrichment and community service programmes for teens.
http://www.summerfun.com/

Teen Summer Camps
Directory of summer camps and programmes for teenagers throughout the US and abroad.
http://www.teen-summer-camps.com/

The Experiment in International Living
Summer programmes for high school students in over 25 countries around the world.
http://www.usexperiment.org/

Thomson Peterson's
A database of 3,000 summer camps and academic programmes.
http://www.petersons.com/summerop/

Trailmarks
Trailmark travels to New England, Colorado and the Northern Rockies on 15 and 21 day action-packed trips for campers age 11 to 16.
http://www.trailmark.com/

Turn-About Ranch
A residential school for unruly teenagers that was featured on the Channel 4 show Brat Camp.
http://www.turnaboutranch.com/

Visions Adventures
Summer vacations with a purpose: community service, intercultural interaction, adventure and exploration.
http://www.visionsserviceadventures.com/

Weissman Teen Tours
Tours to America, Canada, Europe and Hawaii for active teenagers.
http://www.weissmantours.com/

Where There Be Dragons
Study tours for students, school groups, adults and professional educators to China, Thailand, Vietnam, Laos, Cambodia, Tibet, India, Mongolia and Mexico.
http://www.wheretherebedragons.com/

Whitepod
An eco-resort in the French Alps that runs special camps for children aged 7 to 14.
http://www.whitepod.com/

Wickedly Wonderful
Runs small residential camps for kids on England's south coast, as well as skiing trips during winter.
http://www.wickedlywonderful.com/

Windsor Mountain
Offers wilderness adventure, friendship exchange, community service, traveling theatre, language learning, cultural immersion, leadership development and environmental study programmes, as well as a residential summer camp in New Hampshire.
http://www.windsormountain.org/
http://www.interlochen.org/

World Challenge
Schools expedition company that offers a range of programmes geared to the education of youngsters from around the globe.
http://www.world-challenge.co.uk/

XUK
Runs two day camps in North London and one residential camp in Norfolk.
http://www.campsforkids.co.uk/