A working holiday visa for Canada is valid for 24 months and is available to those aged 18-30. If you want to work in education or medical fields, a medical examination may be required in order to obtain a visa. Bag yourself a job at one of Canada's best ski resorts or work as a nanny.
The USA working holiday visa is valid for 12 months + 30 days for travel time. Sponsorship costs are in addition to the visa price so make sure you factor this in to your budget. There are lots of options to work in America, from internships and work experience placements to camp counsellors in a summer camp.
A UK working holiday visa is valid for 24 months and is available to those aged 17-30. The visa is not valid for professional sportsperson jobs, doctors in training and setting up businesses. Bag yourself a job in a traditional British pub or immerse yourself in the local culture working as a nanny.