Vancouver, BC: Long time readers of ReviewFromTheHouse may remember my stories of having to overcome my sometimes incapacitating claustrophobia to undergo magnetic resonance imaging  (Claustrophia and your MRI) and to stay calm on being trapped in a New York elevator. What  I have never disclosed is that my first experience of severe claustrophobia occurred when crawling through a confined tunnel lke Floy Collins, but in the Cango Cave system near Oudtshoorn in the Western Cape of South Africa.