License-free radios for camping

What are the right kind of walky talky radios to take on a camping adventure with the family?

Longest range 2-Way Radio?

My boyfriend and I were thinking about purchasing 2-way radios. He works about 50 miles away (driving distance) but without all the twists and turns of driving, its only about a 25 miles distance. I was wondering if there were any 2-way radios that would pick up at that distance. I know they make 30 [...]