Wondering how a young family stays active? Nate and Chelsea Day were determined to keep living an adventurous life, even after having three babies back-to-back. They maintain a small farm in San Diego - complete with goats and sheep and chickens - while hitting the road 100 days per year. The family is passionate about continually expanding their world view and learning as they go. Here's a detailed tour of the converted military trailer that is their primary means of exploration.