The Essex reality star is just back home from a holiday to Mexico with boyfriend Dan Edgar... and straight back to work, as she's enrolled at No 1 Boot Camp in Norfolk (the same place where co-star Arg has been on a weight loss mission.)
Kate shared an update to her Snapchat yesterday, telling fans: "Day one at boot camp and we've done spinning, two lots of circuits, an hour and a half hike, and now we have to go to boxing. God help me."
That is intense!
She later shared a make-up free video showing herself curled up in bed with a cup of chamomile tea trying to wind down from her exercise-heavy day.
Kate won't bump into co-star James 'Arg' Argent at the camp as he's now left. He had been there since April, trying to shed weight ahead of the next series of The Only Way Is Essex.
No 1 Boot Camp is a favourite among celebrities. Not only has Arg been there recently, others to have enrolled include Made In Chelsea's Spencer Matthews, model Calum Best, ex-Celebrity Big Brother star Chantelle Houghton and Atomic Kitten's Natasha Hamilton.