The district of Jailolo is centred on the town of the same name, which was once the seat of North Maluku's fourth historic sultanate. The sultanate disappeared centuries ago, and recent efforts to reinstall a new sultan have met with scepticism even by the locals.
There are no ancient relics of the sultanate left to be seen in town, which is only interesting as the major entry point to, and administrative centre of West Halmahera.
However the northern part of Jailolo district has fine black-sand beaches, traditional village halls of the native Sahu people and of course yet another (extinct) volcano. Further north, the district of Sahu itself has many more such village halls, and the chance to do some exploring of the interior to visit waterfalls or do some hiking.

Oro Lamo Festival

The Sahu people are famous for hosting the most colourful traditional festivals in all Halmahera, the Oro Lamo, or "Big Eating" festival that celebrates the annual rice harvest. This happens on different dates in the different villages over a long period of time, so if you are interested, there is a decent chance of being able to catch one. As the name suggests, it involves lots of eating and drinking, but more interestingly, also the chance to see people dressed up in traditional finery, and even to see them perform traditional music and dance.