The year 13 pupil's road to the five-day simulation of the United Nations for secondary school pupils began by attending, with peers, the Otago-Southland Model United Nations Assembly competition in Dunedin in May and the national contest in Wellington in early July.
"There were 240 delegates [at the national contest], one for each country and NGOs [non-governmental organisations], and I was Nepal," Felix said on Friday.
"Nepal is a really interesting country, influenced by Hinduism and Buddhism, and it's trying to become a democracy."
Felix was given a month to research his assigned country and prepare to speak to his fellow delegates with authority on four resolutions, including one asserting the right to a peaceful political process.
He proposed amendments to the resolutions, then answered questions in a debate.
"You have to strike a balance between a fair representation of your country's views and how your country wants to be perceived," he said.
UN Youth New Zealand organisers read his application stating why he should be included in the Hague delegation and interviewed him before they announced his selection, along with his 21 contemporaries, at the end of the Wellington conference.
"I was surprised and delighted," he said.
The delegation will travel around Europe on a two-week study tour, which will involve visiting embassies and museums and learning more about how global politics works, as well as New Zealand's role in it.
"I've always wanted to go [to Europe] and I'm excited. I'll be able to test out my French," Felix said.
"It's daunting because these debaters are going to be some of the best in the world, but that's what makes it exciting."