The celebs made their manner via the roads of Portugal earlier than they lastly got here to their vacation spot of the well-known Sanctuary of Fatima.
Travelling collectively, the celebrities bought to find out about each other's non secular beliefs and discovered extra about themselves and what they believed in.
Boyzone singer Shane Lynch is a born-again Pentecostal Christian, and all through the collection revealed that he did not pressure his perception on others, nor did he need to participate in different non secular actions.
On the morning of their final day, because the group sat down earlier than their final trek, Geordie Shore star Vicky Pattison revealed she had a message from Shane.
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Taking part in the voice observe he had despatched, he mentioned: "Celebration individuals, prime of the morning to you. Pay attention, guys, I simply need to say Sayonara.
"I've left this morning and I am heading on house. This journey has been so unimaginable, I've liked each minute of it and thanks guys for being part of that.
"I've come to the top of my journey and I am very full and glad with what I've performed. So, hear, love you all, converse to you quickly."
The group sat in shock, earlier than Vicky quipped: "Sneaky little rascal. Clearly, he looks like he is bought every thing he wished out of this. However I really feel prefer it's such a disgrace I did not get to say bye!"
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Su Pollard turned emotional and admitted: "I am actually unhappy about that, I am actually upset really. He was a pleasant mate."
Talking about his determination to go away the collection, Shane mentioned: "This morning I awakened with fairly an understanding, really, that the journey to this pilgrimage form of ended on the vacation spot, Fatima and the Sq..
"I feel tonight's celebration, the massive hurrah, the massive gathering of 100,000 individuals, I do not really feel it is for me.
"To have a good time Mary on such a excessive or to have a good time Lucia or to have a good time all these characters will not be what we do. We have a good time God. I'd simply really feel like an imposter there, to be trustworthy."
When speaking to Specific.co.uk and different press, he added: "On my exit, I had an emotional time, due to these guys and the journey I spent with them.
"I did not say goodbye and that was a kind of issues as a result of, to not put it all the way down to producers, and I additionally did not need to come to that time the place I used to be like 'look guys I'm leaving'.
"I had made my determination and I did not want 'please do not go', I did not want that I simply wished to exit so I need to apologise to everybody for that as a result of it was a decent bond that we had and I did really feel emotional after I left."
Pilgrimage: The Highway Via Portugal is out there to look at on iPlayer.