"We have all worked hard to provide a truly caring environment, giving the people who live here a true home from home. The Eden Alternative is an essential part of that, and we should all be proud of what has been achieved in surrounding the residents with animals, plants and children, and love and care for one another.
"I could not be prouder of the trustees, the staff and volunteers, the whole community, and the allied health professionals who are such an important part of this home," she added.
"Switzer was a lovely place when I arrived, and it will be a lovely place when I go, albeit different. Tina (Mills, her successor) will lead it well into the future."
She also thanked the Northland DHB for its support, and recognised and thanked the residents who had made Switzer their home.
"Without you we would not have experienced all that you have taught us and shared with us," she said.
"But now it's time to spend time with my family, in my garden, with my animals, and perhaps to spend a little time on me too."
Many of the staff and residents thanked Mrs Simkins for all she had done, and presented gifts, including a garden seat with a basket containing, amongst other things, a bottle of wine or two to enjoy on a warm summer's evening.
Those who spoke included volunteer co-ordinator Brian Atkins, who extolled the virtues of the Eden Alternative, and its aim of removing the stigma of loneliness, uselessness and boredom from the lives of the residents.
"That could not have been achieved without your leadership," he said.
"You have inspired us all, and if the constant pressure took its toll on you, you hid it well."