I'm not sure specifically as there could be many different takes in such a fanfiction. It might be about Harry Potter discovering or owning an island, perhaps with magical elements on it, like hidden magical creatures or ancient spells.
There might be some popular 'Harry Potter has an island' fanfictions, but it really depends on what different readers are into. Some people might be more interested in ones that focus on the island as a place of peace and self - discovery for Harry. Others might prefer ones where the island has some sort of dark mystery or danger lurking on it. You can look for reviews or ratings on fanfiction platforms to find potentially popular ones.
He might have discovered the island during one of his adventures and claimed it as his own. Since there was no one else on the island at the time, and he was the first to set foot on it and recognize its potential, he decided to make it his property.
Perhaps he uses the island as a secret training ground. He could practice advanced spells away from the prying eyes of Hogwarts faculty and students. Harry might also build his own magical fortress on the island for protection and privacy.
There could be some of the house - elves that Harry has freed. They might choose to live on the island, using their magic to help with various tasks such as farming magical plants or taking care of the island's infrastructure. Also, some of the students from Hogwarts who were inspired by Harry could be there. They might be learning new forms of magic that are specific to the island or studying the unique magical ecosystem there.
Ron might be there too. He could use his skills in handling magical creatures to populate the island with friendly ones. And he could also help with fishing in the surrounding waters using magic, providing food for those on the island.
Perhaps it's an island with a hidden wizarding school, similar to Hogwarts but with its own distinct features. There might be ancient spells protecting the island, and the architecture could be a blend of different magical styles. Harry could have discovered this island during one of his adventures and decided to make it his own. He might use it as a sanctuary for those in need or as a place to study and preserve rare magic.
Fanfiction under this statement has influenced the fandom in multiple ways. It has kept the interest alive long after the original books were released. It allows fans to express their creativity and interpretations. For example, some fanfictions might focus on a particular character that wasn't explored enough in the original, which then becomes a popular topic within the fandom. Also, it has created a community of writers and readers within the fandom who interact, discuss, and build on each other's ideas.
Yes, there are likely to be such fanfictions. In the world of fanfiction, creators often like to mash up different fictional universes. Combining the magical world of Harry Potter with the powerful hammer Mjolnir from Norse mythology (popularized in the Marvel universe) can lead to very interesting and creative stories.
Yes, there might be. Fanfiction is a vast world where all kinds of crossovers are possible. Writers often combine different universes like 'Harry Potter' and elements like 'Mokuton' from other sources to create unique and creative stories. However, it might not be as mainstream as some other 'Harry Potter' fanfictions, but with the large number of fanfiction platforms out there, it's very likely to exist.