Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge
Credit: Chris Jackson/Getty Images

The Middleton sisters may have more stamps in their passports than anyone else on Earth. As Travel + Leisure reported, Pippa Middleton has been enjoying a whirlwind global honeymoon for the last three weeks, stopping in French Polynesia, Australia, Sweden, and Scotland, with no sign of slowing down.

Not to be outdone, big sister Kate, the Duchess of Cambridge, will be heading off for a tour of Poland and Germany in July with husband Prince William .

According to an announcement by Kensington Palace, the royal couple will touch down in Warsaw, Poland on July 17. During their visit, Will and Kate also plan to visit Gdansk and meet with Beata Szydlo, the Polish Prime Minister. The royals are also expected to visit the site of the Auschwitz concentration camp, the Telegraph reported, before heading off to Germany.

In Germany, the couple will tour Berlin, Heidelberg, and Hamburg, according to a tweet sent by the palace, before returning to London on July 21. This trip will mark Kate’s first official visit to Germany and the couple’s first tour of Poland on behalf of the government.

The trip isn’t just for a quick vacation, but rather for the good of the British people. According to the Telegraph, Boris Johnson, the Foreign Secretary, asked the duo to make the official visit as "Brexit ambassadors.” The Telegraph noted that the trip is particularly important in Germany, where discussions have soured over potential trade deals. The future king and queen of England are expected to meet with German Chancellor Angela Merkel during their stay.

Hopefully the royals will be able to have at least a bit of fun on their travels. According to reports, neither Prince George or Princess Charlotte are expected to join the international trip. Full details on the brief trip will be released soon, Kensington Palace said.