Donald Trump will arrive in Dublin on Saturday morning to pay a “courtesy visit” to Taoiseach Micheál Martin and President Catherine Connolly ahead of attending the Irish Open in Clare.

The security operation around the event which Gardaí have described as “one of the biggest security and policing operations” ever carried out by the force.

Mr Trump will be in Ireland on September 12 and 13 in Dublin during which time he will meet President Catherine Connolly at Áras an Uachtaráin in the Phoenix Park before a nearby engagement with Taoiseach Micheál Martin at the Farmleigh Estate.

After formalities conclude with the President and Taoiseach, Mr Trump will make way to his golf resort in Doonbeg, Co Clare, which will be hosting the Irish Open.

The park will be closed to the public between 11pm on September 10 and 6pm on September 12 for “operational reasons”.

“The Office of Public Works (OPW) would like to advise the public of a temporary closure of the Phoenix Park next week,” said an announcement

“The OPW received a request from An Garda Síochána to close the Phoenix Park from 11pm on September 10 to 6pm on September 12 for operational reasons.

“The OPW has agreed to this request. All gates, including pedestrian gates, will be closed during this period.”

It said that access will be provided to essential staff working within the park. All roads and gates will re-open when it “is safe to do so”, they added.

Dublin Zoo will also be closed during this period and will reopen on September 13 during normal working hours.

“This is due to the closure of all Phoenix Park gates and roads for operational reasons,” said a statement from Dublin Zoo.

Diversions will be in place on Dublin Bus’ route 24 between Dublin Airport and Merrion Square.

“We wish to advise customers that due to a state visit, the following diversion will be in place on Route 24 from 7:45am to 8:45am and again from 11.45am to 12.45pm on Saturday,” according to Transport for Ireland (TFI).

The Dublin Airport route to Lanesborough Roundabout will be diverted through St Margaret’s Road, Ballymun Road Junction, Santry Avenue, Swords Road before it’s back on to its normal route.

The Merrion Square route will divert via Swords Road, Santry Avenue, Ballymun Road Junction, St Margaret’s Road before re-entering its normal route.

A protest has also been planned at the Garden of Remembrance in Parnell Square East at 1pm on the day of Mr Trump’s arrival.

The Irish Neutrality League – a coalition made up of opposition political parties and human rights organisations – have announced a “massive demonstration” against the visit.

Mr Trump is expected to depart Dublin after lunchtime on September 12 and will travel to Shannon Airport in Clare.

An Garda Síochána, said it has been involved in “intense, in-depth and extensive planning” ahead of the visit.

It has declared an “extraordinary event” allowing for the changing of rosters and overtime arrangements, re-allocated staff, and engaged with Ireland’s Defence Forces and other international police forces.

It said: “The policing and security operation for the visit of the 47th President of the Untied States of America will be one of the biggest policing and security operations implemented by An Garda Síochána.”

It added: “The policing and security operation is a whole of An Garda Síochána response.

“Over the course of the policing and security operation members of An Garda Síochána will perform over 10,000 12-hour tours of duty from Friday until Sunday.”

It involves the Special Tactics and Operations Command, Close Protection Officers, armed and intelligence units as well as public order police.