They could visit an ancient wizarding library on their honeymoon. Hermione would be in heaven, poring over rare books, and Ron would be supportive, trying to understand her enthusiasm. Maybe they find a book with a spell that creates beautiful light displays, and they use it to have a romantic evening under the stars.
Imagine they go on a honeymoon to a wizarding vineyard. Ron gets to taste all the different magical wines and becomes a bit tipsy, which makes Hermione laugh. They also learn about the magic involved in growing the grapes and how it affects the taste. And they end up having a lovely dinner among the vines, reminiscing about their Hogwarts days.
One possible fanfic could be about them going to a secluded beach. They might spend their days exploring the beach, collecting seashells and having picnics. At night, they could stargaze and talk about their future together, like how many kids they want to have.
One common and appropriate scenario is them going on adventures together after the events of the main series. For example, they could be traveling the wizarding world, exploring new magical creatures and spells. This allows for the development of their relationship in a new context while still maintaining the magical and adventurous spirit of the original series.
Love and relationship growth. Their honeymoon is a time for them to deepen their connection, so a lot of fanfictions focus on how they become even closer and understand each other better.
Perhaps it's in a more domestic setting. They could be having an argument, and Hermione gets really worked up. Her hair moves aside, and Ron catches sight of the scar. This shocks him into silence, and then they start to have a more serious, heart - to - heart conversation about their past traumas and how they've affected their relationship.
They might start a family. After the chaos of the war, they would likely want a peaceful and loving home environment to raise children in.
Perhaps Hermione confronts Ron about his lack of commitment to their friendship or to their studies. In the fanfiction, she might be tired of always having to push him to do better and finally snaps at him. For example, she could bring up all the times he's slacked off during group projects or when they were preparing for exams.
One interesting scenario could be them going on a magical adventure outside of Hogwarts during the summer holidays. They might discover a hidden magical creature and have to work together to protect it from dark wizards. Another could be a time - travel adventure where they go back in time to change a small event that has big consequences in their present friendship. And they could also have a friendly competition within the fanfiction, like a wizarding cooking contest where they use magic to create the most amazing dishes.
One scenario could be during a moment of peace at Hogwarts. They are walking in the gardens, and as the sun is setting, Ron takes Hermione's hand and gently kisses her. Another is when they are in a dangerous situation, like in a dark forest, and they think they might not make it out alive. In that moment of fear and closeness, they share their first kiss.
Perhaps in the fanfic, they have encounters with local supernatural beings that are unique to the honeymoon location. This could add an element of mystery and adventure to their time together. For example, they might meet a friendly spirit that gives them advice about their future as a couple.
One possible scenario could be after a big argument and making up. Maybe they had a fight over something silly, like Ron being jealous of Hermione spending too much time with a new wizard at Hogwarts. Then, after realizing their mistake, they have a heartfelt moment and share their second kiss.