Mike McCormick, of Barrington, didn’t set out to create the definitive South Jersey hiking guide. It’s just that it didn’t exist. Now, his website, launched in March 2013, covers more than 120 trails, nearly 50 of which are in the Pines. An avid backpacker and history teacher, McCormick, 35, finds ample inspiration to satisfy both interests here. Asked what he brings for a trek, he quips: “My children.” He isn’t joking. The older of McCormick’s three sons was clocking 4.5 miles by age 2. “That’s bizarre,” he admits. “Most kids don’t do that.