This is an almost impossible question to answer. Costs range widely depending upon the choice of places students want to visit, where they will stay, the duration and whether they will be working. Some short adventure breaks of a month or so cost thousands of pounds but it is possible to find sites where individuals are paid a nominal sum and receive board and lodging in exchange for work. Some gap year students find jobs teaching English abroad or some travel around and find work. It is also important to check if work permits or visas are necessary. The Gap Year Directory www.gapyeardirectory.co.uk has many of the answers and students who have travelled in recent years should also be able to give some first-hand information.