The main airport in Indonesia’s island of Bali has resumed its activities following earlier terminal closures by Indonesian authorities due to volcanic activities and ash clouds in the area.

Ngurah Rai International Airport was temporarily shut down after Mount Raung on Java spewed clouds of ash into the sky, impairing pilots’ vision during take-offs and landings and grounding hundreds of flights.

The airport was, however, reopened by Indonesia’s Transport Ministry on Saturday after the ash clouds drifted southwest leaving skies clear for flights.

It is peak tourist season on the resort island and vacationers had been stranded in Bali for days. Some airline passengers had hired private cars and buses and traveled overland from Bali to other airports.

Trikora Harjo, the airport’s general manager, said things were slowly returning to normal.

“I think maybe after one day, or two days, things will become normal again,” he told AFP.

Meantime, two domestic terminals on the island of Java, closer to Mount Raung, remain closed.

Extreme seismic activity started on Mount Raung, a 3,300-meter (10,800-foot) volcano, late last month when it began to spew lava and ash high into the air.

Air traffic in Indonesia is often interrupted by volcanic activity.

Indonesia is located on a belt of seismic activity running around the basin of the Pacific Ocean.

The country has the highest number of active volcanoes in the world, adding up to a total of about 130.