Are there seas in Paradise, and surfing and everything else that exists in this world, and can one ask to fly like Superman, and does Paradise contain non-human species, and is it larger than the planet Earth?

Paradise is larger than the earth; its width is like the width of the heavens and the earth. It contains rivers of water, milk, wine, and honey, and in it is everything that souls desire and eyes delight in. Allah has prepared for its inhabitants what no eye has seen, no ear has heard, and no human heart has conceived.

As for the inhabitants of Paradise, it has been established that Allah will create beings to fill it. This is a grace from Allah that is not contingent on deeds, as in the case of children and other creations who have not performed deeds. There is a difference of opinion regarding the presence of jinn within it.