They might go to France. France has a rich wizarding history and a beautiful wizarding community. The Beauxbatons Academy is there, and they could explore the magic related to it. There are also magical places like the French Ministry of Magic which would be interesting for them to visit.
One reason could be to explore the wizarding world outside of England. There are many magical places they might be interested in, like the wizarding communities in France or America. They could be on a mission to learn more about different magical cultures and bring back new knowledge to England.
One possibility is America. The American wizarding world is quite different from England's. There are different magical creatures, different magical laws, and a whole new set of challenges and opportunities. They could end up in New York or Salem, places with significant magical presences in the American wizarding community.
One interesting fanfic could be 'A New Start'. In it, Harry and Hermione leave England due to the constant reminders of the war and a desire for a fresh start. They travel to a small, idyllic village in France where they begin to explore new forms of magic and build a life away from the prying eyes of the British wizarding world.
Maybe he's tired of the spotlight in England. In some fanfictions, he could be seeking a new start away from the prying eyes and the constant media attention that comes with being in England.
There's a fanfic titled 'Beyond England's Borders' which details their journey of leaving England. It delves into how they deal with the challenges of leaving their home country, like leaving behind friends and family, while also facing new magical threats and adventures. In this story, they head to France first and thenventure further into Eastern Europe, exploring different magical cultures along the way.
One reason could be to escape the trauma of the war. They've been through so much in England, and leaving gives them a chance to heal in a new environment.
One possible reason could be a misunderstanding. Maybe Ginny misinterprets something Harry does and feels she can't stay in the relationship. Another reason might be that she feels overshadowed by Harry's fame and the pressure of being part of the Potter family. It could also be that she has some personal goals or dreams that she realizes she can't pursue while being with Harry and taking care of the kids.
Perhaps they would head to America. In the wizarding world of America, there are different magical institutions and a large expanse of land where they could start anew. They might be drawn to the Ilvermorny School of Witchcraft and Wizardry area, to interact with new wizards and witches and learn from a different magical education system. Also, the American magical community might not be as involved in the affairs of the English wizarding world, providing them with some anonymity.
Ginny would likely become more independent. Without Harry, she has to rely on herself for everything. She would become a strong mother figure, learning to make decisions for the well - being of her child.
They might go into hiding because there are still some remnants of Voldemort's followers who are seeking revenge on Harry. These followers could be more dangerous than before as they are desperate and hiding in the shadows. Ginny, being Harry's wife, is also in danger, so they choose to go into hiding to avoid any potential attacks.