We make do with an exhilarating hour beneath the towering cliff face.

Water plunges over the top of a towering cliff at a rate of per second.

As we cut through the waves, past towering cliffs and dark coves, we see guillemots, razorbills, kittiwakes and gannets.

To get here, we've abseiled towering cliffs, waded raging rivers, clambered rough ropes and dined on prickly cactus.

But spare some time for the rest of the island too, especially the towering cliffs of its southwestern tip.