It's summer. Not officially, but close enough. Many schools have already taken the next few months off, others will soon join the summer break.

Summer for many is the peak travel time. Parks are a great destination, whether in summer or just about any other month of the year. To help you come up with some ideas of which parks to visit and why, we've invited two members of the Coalition to Protect America's National Parks – Maria Burks and Phil Francis – who collectively have spent more than eight decades working in the National Park System to discuss their favorites.