Hiking in a white out

I took Ella and Sj to the steam vents trail that Lucy and I had been to last week. We walked a little further along the trial this time. I thought they would enjoy it. But it was very cloudy(it's at 4000 feet) and a little voggy and there were lots of cliffs without guard rails which freaked St. John out. When I say "cliffs" I mean sharp 500-800 foot drop offs. Needless to say, we stayed on the trail!