I was way way up on the mountaintop part of the Camino del Salvador (between Leon and Oviedo) with Piers Nicholson, keeper of another fine Camino website. It was a sunny day in September 2009, but as we hit the pass above Busdongo, a huge black storm came howling out of nowhere. It was the coolest thing, being up so high we were AMONG the stormclouds, with rain and ice blowing sideways. I could actually see the rain condensing out of the cloud, and had just pointed that out to Piers when... KABOOM! The lightning and thunder blasted down at the same time, and we both hit the ground yelling like little kids, our hair felt like it was standing up on our heads!
You never saw two people scramble down the face of a mountain so fast, despite the hail and rain and wind and at least two additional near-misses with lightning. We were scraped and soaked when we found the next waymark, way down at the bottom, but we were alive!
Piers, always the cool and calm gentleman, says he does not recall that afternoon in the same terms.
That is as close to lightning as I ever want to get.