Jennifer Holmes founded Joyous Journeys - all because she was interested in "voluntourism" and "eco-tourism" but couldn't find the services that she needed to play her offshore vacations. She, like so many others, enjoys taking vacations but also wants to give back while she's holidaying. Whether it is for a day, a few days, or even the focus of the whole trip, Jennifer plans exciting excursions that enable people to do anything and everything from research with baby whale sharks to irrigation projects that help people access clean drinking water. Ecotourism is growing: globally, it's a $174 billion industry. The Grit Files dug into why Jennifer does what she does and what we can all learn from it.