If you're starting to plan your summer vacations, consider something that's not just a trip, but an experience that creates lifelong memories. Multi-generational travel is growing in popularity, and for good reason. It strengthens family bonds, bridges generational gaps, and lets everyone, from the youngest to the oldest, see the world through each other's eyes. But planning for a trip that works for grandparents, parents, and kids takes a little strategy. Kristin Hancock shared expert advice for a smooth, stress-free vacation for everyone.