The much-loved host, who spent time in rehab for painkiller addiction after a knee operation this summer, joined sidekick Declan Donnelly for the start of the latest series.
The duo delighted in watching some of the campmates struggle to stay calm during a vertiginous first task.
Stranded 334ft up on the roof of a Gold Coast hotel, terrified celebrities Amir Khan, 30, Vanessa White, 28, Jack Maynard, 22, Jennie McAlpine, 33, Jamie Lomas, 42, and Georgia Toffolo, 23, were forced to “walk the plank”.
Two at a time, they were ordered to walk out on a thin metal frame perched on top of the Focus Tower in Australia’s Surfers’ Paradise.
They negotiated gaps in the rickety platform to reach the end before turning round and walking back to a laughing Ant and Dec.
Comedian Shappi Khorsandi, 44, and former footballer Dennis Wise, 50, were seen skydiving into camp, while footballer’s wife Rebekah Vardy, 35, Stanley Johnson, 77, were forced to use a leaky boat to cross a creak.
Little did they know but they were each playing for meal ticket for their first night in camp.
The celebrities managed to bag four with those winning one eating well and the rest surviving on basic rations in the Croc Creak main camp.
Former politician Stanley Johnson, father of Foreign Secretary Boris, was later seen taking a shower and, after being asked what he would miss about the outside world, he simply replied: “Wine and cheese”.