In reply to disco leg:
Most of the 'white' rock in the Ionian is solid where it has been sea-washed but soon deteriorates, believe me I know. There are similarly impressive white cliffs on the W coast of Levkada (Levkas) near the lighthouse at Sappho's Leap, but they give an experience to some of the more esoteric corners of the Culm and N Cornwall coasts; the only difference being that one hopefully dies of dehydration and sunstroke before the whole lot disintegrates.
The best rock in the area lies on the small uninhabited island of Oxhia, About 20 routes so far up to 6a (UK) and 200m high with about 400 to go but you need a boat to get there.