While these are wonderful programs, both the Peace Corps and Voluntary Service Overseas require two year commitments, which may not be feasible for students and professionals who are seeking shorter length volunteer projects. Furthermore, United Nations Volunteers requires a six month dedication and could be a highly aggressive program. Construction of the trail was carried out by Foglio, a Waterboro, Maine-based construction firm. Nearly 20 years ago, long before the #regenerativetravel hashtag turned stylish, a Chilean scientist started changing the depleted Rancho Margot cattle ranch close to Lake Arenal within the northern highlands of Costa Rica into an endemic forest. Adventure seekers can kayak, hike and mountain bike around stunning Lake Arenal and the Caño Negro River, whereas volunteering and sustainable dwelling immersion packages are available for gradual vacationers seeking to embark on a deeper journey.