Organisers of 12 July parades in Northern Ireland next week have appealed to the public to follow public health guidelines.
Around 100 parades are planned across Northern Ireland on Monday.
Reverend Mervyn Gibson, the Grand Secretary of the Orange Lodge of Ireland said the institution is "conscious of the threat that Covid-19 and its variants pose", particularly through community transmission.
The Orange Institution is encouraging people participating in or attending the parades, to "get vaccinated for the big day", and encouraged those who plan to watch parades to adhere to social distancing and not to walk alongside them.
Anyone with symptoms or who has tested positive has been urged not to take part or attend the events.
The Orange Institution is also offering lateral flow testing kits for individuals, lodges or bands to use in advance of Monday.
Reverend Gibson stressed the strongest appeal was for people, even in the few days remaining, to get vaccinated for the Twelfth.
He said: "The Institution wants everyone to enjoy the Twelfth, but also to look after each other's health. Whether that is simply wearing a face covering, or regularly using hand sanitiser on the day, everyone has a part to play."