Marketing Internships in Thailand with Greenheart Questions and Answers Return to Program Question Showing 1 - 1 of 1 Will I be able to join for a shorter period of time? Based of their website, http://greenhearttravel.org/program/adult/work/winter-break-internship-in-thailand, it looks like you can either volunteer for 8 or 12 weeks. Hope that helps! By Carly Freeman on July 25, 2016
Based of their website, http://greenhearttravel.org/program/adult/work/winter-break-internship-in-thailand, it looks like you can either volunteer for 8 or 12 weeks. Hope that helps!