Tanna is the island that makes people come back to Vanuatu. It has Mount Yasur, one of the world's most accessible active volcanoes, where you can stand at the rim at night and watch lava blasting from the vent below you, close enough to feel the heat. It has Yakel, a kastom village where people have chosen to maintain traditional dress and lifestyle entirely. It has the John Frum movement, a fascinating religious and political tradition that resists simple categorization. And it has the kind of landscape — black sand beaches, wild forest, banyan trees that could shelter a village — that stays in your memory.

Getting to Tanna from Port Vila takes about 45 minutes by propeller plane. The flight path takes you over the Shepherd Islands and then south, and on clear days you can see Yasur's smoke column before you land. Tanna's airport, White Grass, is a grass strip surrounded by open savanna. The air is cooler than Port Vila, especially in the evenings.

Yasur erupts continuously — it has been doing so for at least 800 years, possibly much longer. Seismic activity determines how close you can get. On low-alert days, visitors stand directly at the crater rim. The volcano is sacred to Tannese people, particularly those in the John Frum tradition, and entering the sacred area requires both tour guide accompaniment and cultural sensitivity. The income from Yasur tourism is significant for local communities and for the Tannese families who operate guide services and guesthouses.

The John Frum movement emerged in the late 1930s or early 1940s around a messianic figure named John Frum who promised that if Tannese people rejected colonial Christianity and returned to kastom, goods and abundance would come. The movement has been interpreted by outsiders as a "cargo cult" — a somewhat condescending term that misses its political and spiritual dimensions. John Frum adherents observe Friday as a holy day, maintain ceremonial dancing and singing, and fly American flags (the connection to America comes from World War II-era perceptions of American military abundance). It's a living religious movement with thousands of followers, not a historical curiosity.

Yakel village, about 90 minutes' drive from the airport, offers one of the most genuine cultural encounters available in the Pacific. The village has maintained traditional dress — men in nambas (penis sheaths), women in leaf skirts — and traditional practices by community choice, not for tourist performance. Visits are managed, limited, and conducted with community consent. The income from controlled tourism supports the community. It's not a zoo and visitors who treat it as one are unwelcome. But approached with genuine curiosity and respect, a visit to Yakel is extraordinary.

Tanna's beaches range from white sand near some resorts to dramatic black sand on the volcanic south coast. The blue hole near the main resort area is cool and clear. Jungle hikes lead to waterfalls and viewpoints. The island is small enough to get a real sense of in three to four days, large enough to fill a week if you slow down and talk to people.

Accommodation options range from basic bungalows to mid-range ecolodges. Nothing on Tanna is luxury by international standards, which is fine. The island's value is in the volcanic landscape, the cultural depth, and the sense that you're somewhere genuinely off the beaten track even though it's very easy to get there.