King Charles is pausing his cancer treatment as he and Camilla Parker Bowles head to Australia for an 11-day tour. The monarch has received weekly treatments for the disease for the better part of a year.

King Charles, the only British monarch who has spent time living in Australia, arrives on Friday for his inaugural visit to an overseas realm as sovereign, his first major foreign trip since being diagnosed with cancer.

It is the first time since Charles assumed the throne that he will visit one of the 14 countries outside the U.K. where he is head of state.