These pictures were taken during several trips to Chile.
I first visited Chile in 1979, then again in 1982, while conducting research in astronomy, but couldn't help seeing a number of cacti.
After that, it wasn't until February 2001 that I returned, this time with cacti in mind. I was accompanied by Paul Hoxey, Jean Ellwood, and Alfred Lau the renowned cactus explorer.
I returned again in November 2002 with Paul Hoxey, Jonas Lüthy, and Simon Mentha, and most recently in November 2006 with Paul Hoxey and Peter Berresford.