Guide will help you to cross most difficult parts. It is nice place, it reminds me Dunn River Falls walk in Jamaica but Vanuatu case is longer and wilder. There is picturesque waterfall at the top. Further on 132-kilometers loop there are nice beaches, caves, viewpoints, villages, excellent diving and snorkeling places. All you need to remember is that local behavior is to ask for permission to enter somebody's land.
Permission is always given, small fee sometimes is requested.
Tanna Island Tanna is second most popular island of the archipelago. It is famous for its volcano Yasur, custom villages and cargo cults that have grown here. Thatched houses, wandering pigs, kava trees, abundant nature around - all seems like hundreds years ago. On the nakamal - central place of the village under huge banyan tree the villagers performed for us traditional songs and dances. And it was something I never saw anywhere in the world.