In fanfiction, Harry could be part of a Canadian sports team. Since Canada is known for ice hockey, he might join a local hockey team. He has to learn the rules and the culture around the sport, and he experiences the intense competition as well as the camaraderie among his teammates. This new aspect of his life in Canada shapes his character and gives him new goals and friendships.
One possibility is that he discovers ancient Canadian magic that has been long forgotten. This could lead him on a journey to uncover the secrets of this magic. He might also have to face some challenges related to cultural differences between the wizarding world in Canada and that in other places. For example, different magical traditions and taboos. And as he grows up, he could become an ambassador of sorts between the Canadian wizarding community and the international magical community, sharing the unique aspects of Canadian magic with the rest of the world.
Perhaps Percy lives in a small town in Canada. He could be involved in a mystery where he discovers an old, forgotten diary in his attic that seems to hold secrets about the town's past. As he delves deeper into the mystery, he uncovers long - lost family connections and historical events that have been buried for years.
In canon, Harry grows up in England. If he lives in Canada from a young age, he won't have the same experiences at Hogwarts in England. For example, he might attend a different wizarding school in Canada, with different house systems and teaching methods.
He might encounter rough seas. The boat could be hit by a storm, and Harry has to help the crew secure the sails and keep the boat afloat. This would be a real test of his courage and physical strength.
Maybe Harry goes to Canada to study magic in a hidden Canadian wizarding school. He could meet new friends and learn about different magical creatures native to Canada, like the Thunderbird.
He could adapt to the cold climate in Canada. Maybe he buys warm clothes and learns how to build a proper snow shelter. Also, he might start enjoying winter sports such as skiing or snowboarding which are popular in Canada.
There could be a group of magical outcasts in Canada who take Harry in. These are people who have been shunned by the mainstream wizarding society for various reasons. They would understand Harry's need to escape and would protect him because they see him as one of their own, someone who is also trying to find a place where he can be safe and free.