El Retiro Park

This park is amazing!! There's so many amazing buildings / statues / places to eat / things to see! It's a massive park in the centre of Madrid. There's a boating lake in the middle of it too. When you're in the park you don't feel like you're in the centre of a busy bustling city!! The vast majority is accessible - occasionally you might have to look for another route to avoid steps - but that's normally easy to find!