If you want to do something incredible with your gap year, head to Nepal to teach English. Spend your days in the local school with other volunteers, arrange football and volleyball matches after class, and use your spare time to really integrate with the local community. Customise this patchwork, ask your friends and family to help you get on your way, then go ahead and book your trip!
Do you have a 50l rucksack I can borrow please? I promise I will look after it!