Well now, contrary to previous posts, we thought that the "drive through" volcano was a fascinating place to visit and were duly impressed. It was, to us, much more interesting than Hawaii Volcanoes National Park, for instance.
We booked with St Lucia Reps (St. Lucia Reps - Welcome to St. Lucia
) and had an excellent tour, a very pretty and scenic drive through the banana plantations and by the pitons, and time to explore the volcano and inhale the sulphurous fumes to clear our sinuses!
check out our trip report and pictures at http://users.elite.net/thehalls/serenade2.html
Have a GREAT cruise!