Clare County Council has secured a court order at Ennis Circuit Court to prevent casual trading and busking at the Cliffs of Moher.
It comes after the council sought injunctions on 19 traders and buskers operating at the site last year.
It has already offered licenses to 17 buskers under a new scheme set up to maintain standards, and says it intends to fully implement the terms of today's order at the cliffs.
The cliffs attracted more than a million visitors last year.
Taoiseach Bertie Ahern will officially open the new €31.45m 'Cliffs of Moher Visitor Experience' on Thursday, 8 February.