Applicants must have one or more of the following: At least 5 years of professional experience leading multi-day, small-group tours; A bachelor's degree or higher in a relevant field, such as: Nature Journeys or Earthwatch Expeditions: natural sciences, biology, ecology, wildlife biology, environmental science, conservation, geology, outdoor education or related fields; Cultural Journeys: cultural heritage, history, archaeology, anthropology, tourism, area studies, museum or heritage interpretation or related fields; or. Required Credentials & Certifications Before their first scheduled trip, Expedition Leaders must hold the following current credentials: Wilderness First Aid certification, or an equivalent locally recognized outdoor first aid course with at least 16 instructional hours CPR certification Any licenses, permits, certifications, or accreditations required by local law, the applicable operator, or the specific destination.