Montana-based Zephyr Adventures may cater to an older crowd (the average age of participants is 48) but they have loads of experience with families. They offer two dedicated family trips, one in Greater Yellowstone and one in southwest Utah, and welcome families on most departures. Family departures include fun family activities such as rafting, wildlife watching and horseback riding. Zephyr Adventures' hiking, biking and inline skating trips are ideal for active travelers. Family Travel Tips: Family vacations cater to kids between 5-12. The recommended minimum age on all other trips is 10.