Frontier's Ethical Adventure Trails take in the most amazing historical and natural sights of South America, Central America and South East Asia, as well as a range of adventure sports and activities. You can also take part in teaching or conservation. SOUTH EAST ASIAThe South East Asia Ethical Adventure Trail takes in some of the most amazing experiences Thailand, Vietnam and Cambodia have to offer. Starting in Thailand, this guided grouptrek visits many of the main historical and archaeological sights in Bangkok, Chiang Mai, Pai and Kanchanaburi, as well as some white water rafting Moving on to Cambodia, the trail visits Phnom Penh and Siem Reap, including the world-famous Angkor Wat temple complex. Volunteers can also take part in teaching work with some of Cambodia's disadvantaged children. Finally, the trail visits Vietnam, taking in the sights of Ho Chi Minh city, Hanoi and Sapa, as well as the breath-taking Halong Bay. SOUTH AMERICAThe South America Ethical Adventure Trail is a professionally guided group trek that lets volunteers experience many of the most amazing sights of Ecuador, Peru and Bolivia. In Ecuador, the trail visits Quito, Riobamba, Cuenca and Montenita, including the Mitad del Mundo and the Podocarpus National Park. Next up is Peru, where the trail heads to Lima and then on to the Incan lost city of Machu Picchu for a truly unforgettable experience. In Bolivia, the trail continues through Copacabana, Coroico and La Paz, and visits two of the world's most amazing natural wonders Lake Titicaca and the Uyuni Salt Flats. CENTRAL AMERICAThe Central America Ethical Adventure Trail is a professionally guided group trek that lets volunteers experience many of the most amazing sights of Mexico, Guatemala, Honduras, Nicaragua and Costa Rica, while also taking part in adventure sports and even conservation work. The archaeological sights on this tour include the Mayan ruins of Palenque, Tikal and Copán, while adventure sport activities include horse trekking, kayaking, scuba diving, zip-lining and volcano boarding. Volunteers can also give something back by teaching English to kids at a local school and by getting involved in a wildlife conservation project in beautiful Costa Rica. Established in 1989, Frontier have loads of experience of organising and running volunteering projects and adventure travel tours. With a strong foundation in conservation and responsible travel, we can offer amazing experiences that also offer the chance to give something back to the communities you are travelling in. To get more info on our gap year expeditions and adventure travel trips, take a look through some of the adventure travel options on our site. Apply online now and a volunteer advisor will give you a call back to help you find the perfect experience. HighlightsTRIP HIGHLIGHTS" A unique view of a fascinating part of the world" Discover local cultures and delicacies" Make lifelong friendships" Become an intrepid explorer in wondrous corners of the world" See some of the most amazing natural and man-made wonders of the world" Take part in adventure sports and adrenaline activities" Give something back by volunteering at a teaching or conservation project" Earn a useful qualification.