Ferne McCann cradles infant daughter Sunday as she shows off her incredible ...

Ferne McCann took advantage of soaring summer temperatures on Sunday afternoon by stripping down to a bikini for a barbecue with her infant daughter.

The TV personality, a self-confessed fitness fanatic, showed off her toned physique in a striking red two-piece after taking to Instagram with 19-month old Sunday, her only child.

Revealing her well-proportioned frame, Ferne, 28, appeared to be in high spirits as she cradled the infant, whose hair had been pulled into a ponytail. 

Good times: Ferne McCann took advantage of soaring summer temperatures on Sunday afternoon by stripping down to a bikini for a barbecue with her infant daughter

Good times: Ferne McCann took advantage of soaring summer temperatures on Sunday afternoon by stripping down to a bikini for a barbecue with her infant daughter 

Captioning the images, the former TOWIE star admitted she had peeled off ahead of a barbecue, but was struggling to cope with summer temperatures that have so far climbed to 35 degrees.  

Their appearance comes after Ferne shared a heartfelt open letter to her daughter Sunday, thanking her for being her saviour during the 'darkest times'.

The reality star told her adorable little girl she gave her 'hope' and was her 'light at the end of the tunnel' in a snap of the hand-written note posted to her Instagram page on Thursday.

Don't mind me: The TV personality, a self-confessed fitness fanatic, showed off her toned physique in a striking red two-piece

Don't mind me: The TV personality, a self-confessed fitness fanatic, showed off her toned physique in a striking red two-piece

'The light at the end of my tunnel': Ferne previously shared a heartfelt open letter to her daughter Sunday, thanking her for being her saviour during the 'darkest times'

'The light at the end of my tunnel': Ferne previously shared a heartfelt open letter to her daughter Sunday, thanking her for being her saviour during the 'darkest times' 

She wrote: 'Sunday my darling girl, you have no idea just yet, but you saved me through my darkest times.  

'Because of you I was able to find hope, you were my light at the end of the tunnel. You are and always will be my ray of sunshine my sunny Sunday. Baby girl there is so much I want for you, so many wishes, hopes and dreams.

'I wish for you to be kind above all else, have a big heart, wear it on your sleeve! Be a good friend, listen to people, give them your time, look them in the eye and always smile.

'Be a strong woman, have the confidence to know your self-worth and have the strength to chose your dreams. 

'Do not waste your energy on negative energy. Say sorry when sorry is due, even though it may be hard to say, it will always make you the bigger person. Always be honest.'

Open letter: The reality star told her little girl she was her 'light at the end of the tunnel' in a snap of the hand-written note posted to her Instagram page

Open letter: The reality star told her little girl she was her 'light at the end of the tunnel' in a snap of the hand-written note posted to her Instagram page

Ferne's emotional note will no doubt spark speculation the 'darkest times' in question are referencing her relationship with Sunday's father, Arthur Collins. 

The TV personality split from ex-boyfriend Collins when she was pregnant with Sunday after he carried out an atrocious acid attack at a nightclub in east London in April 2017.

Arthur was found guilty of five counts of grievous bodily harm

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