"I want to make this your best experience ever", she wrote on her Clean Eatz NZ Facebook page, where she has previously shared photos of her life on the island with her more than 100,000 Facebook and Instagram followers.
"Not only will you get to spend a majority of your time on the Greek island I have fallen in love with; swimming on the beaches, visiting all the amazing local restaurants and seeing the ancient sites but you will also see Athens, Samos and Turkey."
In her first interview since going public with the venture, Ms Elder-Holmes told the Herald she initially went to Lesvos for a break before Morris' murder trial.
"Then I decided I want to come back after as well because the trial was so horrible, and then I just ended up staying because I fell in love with the place ... there are so many things that will appeal to people of all ages, the simplicity of life here, the food; which is insane."
Her mother, Waiheke Island-based doctor Hinemoa Elder, visited recently and the pair shared photos together on Instagram.
Moving to Greece had changed her life in many ways, Ms Elder-Holmes said.
"Mainly it's made it much more simple and given me the chance to be happy again in a place where my whole back story isn't common knowledge. I know Connor would want me to do whatever is best for my wellbeing and happiness."
Morris died of head injuries he received in a street fight in August 2014. His killer Michael Thrift Murray, 34, was convicted of murder and sentenced to life in prison last year.
The 27-year-old had visited Lesvos Island before his death, Ms Elder-Holmes said.
"He loved it when we came here together three years ago."
