At the drop of a .........

I picked this hat up in the sales today as I thought it might come in useful when we go to Iceland in a few weeks time.

The weather in Iceland is currently pretty cold but Bárðarbunga is beginning to make noises and things could heat up very quickly. It's part of a volcano system underneath a massive glacier and since Saturday, seismologists have detected some 3,000 earthquakes in the region — a sign that magma may be on the move.