According to a new survey, age plays a big factor in how people vacation. 18- to 21-year-olds are mostly looking for adventure. Millennials between the ages of 22 and 37 want to spend time with friends and family. And Gen-Xers, those ages 38 to 53, are into relaxation. While each age group has different motivation, the survey found that they all agree that their favorite place to spend vacation time is the beach.