Yasur is incredible- but it is just one of the fascinating aspects of Tanna.
It's many years since I went. But, for me:
.Not just the volcano, but the moonscape around
.The local cargo cult ("John Frum" people)
.Landing on the grass airstrip, allowed to sit in the front of the four seater with the pilot
.The experience of the culture. My guide's car had a puncture (I was the only passenger), so we had to walk several kms to the nearest village. It was evening, so we were invited to their evening meal- cooked in an underground fire. From the reactions of the kids, it appeared that they were not used to white people- but also evident that kids enjoy the same sorts of games in any culture, games which go beyond language. The evening included kava drinking. I was one of the "privileged" people. The kava root was chewed by the young people, and made into a drink for the older people and guests. As a guest, I was in line straight after the village chief. The taste was of dirty dishwater. The effect was not felt. The experience ("listening to the kava", and sharing in a traditional village's lifestyle) was unforgettable.
.Meeting people. I chose to stay away from tourist accommodation, even though that, at the time, was primitive by our standards- to the point of paying extra to stay with locals rather than staying in my prepaid accommodation. An especially memorable conversation, in my attempt at "Bislama", or what people call "pidgin English":
Me: "You go work?"
Him: "I go work".
M: "Him bad tumas" (too much)
H: "No bad tumas. Sipos I want go work, I go work. Sipos I no want go work, I no go work"
He had everything he needed. There was no pressure for him to do anything, to do anything over and above the abundance which was all around him.
