The Duke of Cambridge is making one of his final public engagements on Anglesey as the new father's time on the island comes to an end.
William will be joined by Kate as he starts the gruelling, three-day annual "ultra" marathon run around the coast of the island, known as the Ring O' Fire.
The Duke and Duchess will meet some of the runners and their families and volunteers before the start - but the couple will not be bringing the royal baby.
The annual event is a 135-mile foot race around the rugged coast of Anglesey, staged over three days and including 13,695 feet of ascent.
The last time the Duchess was seen in public was the day after the birth of Prince George.
More top news
Dozens of protesters gathered outside the practice of a suburban Minneapolis dentist who killed a protected lion in Zimbabwe.
Ramsay Street, the set of long-running Australian soap Neighbours, is to be transformed into a hotel for fans.
The average Brit spends almost ten years of their lives in front of the television, research has suggested.