Where can we travel for a summer vacation without having to spend a fortune?

You can travel pretty cheap if you know how to and even with a big family such as you have, try sites like Expedia and other travel sites that may give you a really good deal. Some great places would be Kingston upon Hull in the European area. Also some kids are able to travel for free,but make sure you do some really extensive research. http://trifter.com/practical-travel/kingston-upon-hull/