In excess of 250,000 people are expected to wave goodbye to the tall ships as they leave Liverpool.
People are expected to line both banks of the River Mersey to see the Parade of Sail as the culmination of the bank holiday weekend's Three Festivals Tall Ships Regatta.
17 vessels have been moored up along the Liverpool waterfront but will move out from their berths into the river from 9am today (Monday).
They will then form up in line near the Echo Arena.
Organisers say anywhere along the waterfront will provide a great vantage point to watch the vessels as they depart in the Parade of Sail at midday.
The ships, crewed by young volunteers will head towards the mouth of the Mersey, sailing past the Albert Dock, Pier Head and New Brighton before starting the race to Dublin 13 miles out in Liverpool Bay.
They will be escorted by ships from HMS Eaglet, Merseyside’s Royal Naval Reserve training centre, who will bring up the rear of the parade.
All timings are subject to weather and tidal conditions.
Meanwhile, police have offered advice to make sure people have a great time and enjoy the event safely.
A series of road closures will be in place until at least 4pm, including Princes Parade, Pier Head, Water Street, Brunswick Street, Mann Island, Albert Dock and King's Parade. More details here: https://www.cultureliverpool.co.uk/road-closures-three-festivals-tall-ships-regatta/