This is what my Children would have considered a real fairytale castle, situated on a high rocky promontory with the only access over a very narrow bridge from the outer ward. To add more to the mix there is a cave underneath where obviously a dragon or some such creature would have dwelt.
I'm sure in its hey-day it would have had a coat of limewash and stood out far more clearly along this rocky coat of North Antrim.
The NIEA website has a nice feature that shows a panoramic view the gives a far better impression of it than my photographs. (link)
Further alone the coast are a couple of other castles in equally striking situations but time has not left as many remnants.