Saturday night sees the annual Mini-Twelfth in Portadown when around 700-800 Orangemen and 14 bands take to the main streets.
It will mark the 25th anniversary of the event which started in 1990.
The parade marches off at 7pm, led by Portadown District Master Darryl Hewitt, County Grand Master Denis Watson, the district officers and their guests.
The first lodge on the parade will be the ex-Servicemen’s LOL 606, who will have as their guests their counterparts from Newtownards, LOL 1952. The leading band will be Millar Memorial Flute Band from Belfast.
The route of the parade will be - left turn from Carleton Street, along Church Street, into Jervis Street, then through West Street, down the town centre to Edenderry Square and back up to Carelton Street.
On the way back uptown, a wreath will be laid at the Pleasure Gardens to commemorate the 1641 Massacre at the River Bann.
Said Mr Hewitt, “With this being the silver anniversary of the mini-Twelfth, we appeal for the usual excellent turn-out of Orangemen and supporters who have turned out in their thousands over the years.”