Answer:
Thirty white horses on a red hill, First they champ, Then they stamp, Then they stand still.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
Hoofed frolicking.
You use it between your head and your toes, the more it works the thinner it grows.
What age most travelers have?