Bob,
Tristan still fascinates me and I used to have the web site in my favourites. Liked to follow the life there which at times seems quite idyllic. They have some good ship visits down there as several of the cruise ships call. A difficult place to get to and you have to have permission. Sail from Capetown on scheduled sailings on the fishing vessel Edinburgh, cargo ship Baltic Trader and survey ship Agulhas II. The first two have accommodation for 12 pax and Agulhas carries 40 but only visits a couple of times a season. Link below for any interested in looking and learning about Tristan.
http://www.tristandc.com/index.php
Neville - Hawkey01