Three-time major winner Padraig Harrington says players will "experience something they have never experienced at an Open Championship before" at Royal Portrush.
The Open is returning to the north Antrim coast for the first time in 68 years between 18 and 21 July.
"I just know that the atmosphere will be second to none," said two-time Open winner Harrington.
"Hosting a great event means it will come back again in the future."
The Dubliner won his first major at Carnoustie in 2007 before spectacularly retaining the Claret Jug at Royal Birkdale a year later.