Our kids aren't really into a lot of extra-curricular stuff. They just don't have interest in playing sports or taking dance and stuff. But we love to travel. We like the hours in the car chowing down on junk food and watching movie after movie. We enjoy eating out and not having to do dishes afterward and everyone gets to order what they want to eat instead of having to eat whatever mom made.
We even love the hours of research and figuring out the best itinerary and the best deals we can find on attractions and hotels and how to fit the most for our time and money into the trip.
I guess traveling is our hobby. Now I just need to find out how to make some money with this hobby. So we can travel more. :).