About 2,000 Orange Order members from both side of the border took part in a peacefully march through Rossnowlagh inCo Donegal.
Thousands of Orangemen and women gathered for the annual parade through the seaside town which lies about 10 miles from the border.
The gardaí mounted a low-key operation - which included for the first time two members of the garda mounted unit - and there was no trouble during what is usually a peaceful march.