Thinking of trravelling to Corfu, Greece - Any tips?

Hi everyone,

I'm considering travel to Corfu in June this year for 3 days. I haven;t been before and don't know much, Ive been researching online and have some sort of idea of the island and it looks amazing. I can't drive nor can my brother. Does anyone know any nice spots we can explore? Or just any general advice would be nice :)

Thank you!