Citizens of Australia, Canada, South Korea, New Zealand between the ages of 18-30 are eligible for a 1-year Dutch working holiday visa in the Kingdom of the Netherlands.
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New Zealanders between the ages of 18-35 years are eligible to apply for 43 long stay visas under the working holiday schemes New Zealand has agreed with other countries.
40workingholidays.com has guides on how to apply for the visas, and how to get setup once you arrive.