There will be an old-fashioned Village Fete on March 30, with proceeds going to Greytown Early Years.
Mrs Hay said South Wairarapa Mayor Adrienne Staples will open the fete on her horse, along with her "page" and councillor Solitaire Robertson.
"They will be dressed up, dressing to the period," said Mrs Hay.
She said there will be entertainment, craft and food stalls, high tea, a magician show, face painting, a bouncy castle and spot prizes for kids in fancy dress.
"There's quite a lot of focus on Wairarapa crafts and products to celebrate all things Greytown and Wairarapa."
A light-hearted 'Most Beautiful Dog in Greytown' competition is also being held to celebrate the role farm dogs have played in Greytown's history.
Once the largest town in Wairarapa Greytown was founded by the Small Farms Association.
Maori had already been in the area for hundreds of years when the association, made up of Pakeha settlers looking for land to farm, was drawn to Wairarapa.
The settlers, of small means, were worried the wealthy would buy up all the Wairarapa land the Government had purchased from tangata whenua.
They persuaded the Government to set aside land for them, one piece which became Masterton and the other Greytown, named after Governor Sir George Grey.
A group of six settlers crossed the Rimutakas on foot with four bullocks carrying their possessions and arrived to camp near present day Cobblestones Museum.
Samuel Moles and his wife Jane, Thomas Kempton senior, his son Thomas junior, the Rev GB Brough, and Benjamin Stevens set to work to build shelters and small cottages and within five years more substantial buildings, shops, hotels and larger houses were built.
The Government also bought a large section of Tauherenikau land and set aside a block for the creation of a church village at Papawai which became home to Kotahitanga, the Maori Parliament movement.
For more information on the 160th celebrations, visit www.facebook.com/GreytownCommunityBoard
