At the top of the last pitch on The Boltway. The Boltway is a 2 pitch link up with Hermaphrodite Flake, which is also two pitches. The second pitch goes behind a flake and into a cave for almost 100 feet, to emerge on an exposed flake / lieback. Some of the most unusual climbing I've ever done. Sadly no pictures of the cave, as it wasn't really practical.