A new walking trail stretching around the entire shoreline of England is being publicly launched.
With a length of 2,689 miles long, it is the most extensive curated coastal walking route in the world, as stated by the official organisation that created it.
Its official designation is a mouthful - the England Coast Path named for King Charles III - but for the very first time, it establishes a continuous trail, allowing walkers to traverse England's seaside step by step.
Along the way, it meanders through some of the country's most picturesque and diverse landscapes, from salt marshes and sandy beaches to cliffs, dunes and quaint seaside villages.
A key attraction is the renowned chalk downland of the Seven Sisters in a southern county, which also constitutes a newly designated conservation zone.
Much of the inaugurated trail already existed, but over 1,000 miles of new paths have been constructed, and countless stretches upgraded. Walkways have been repaired, stiles removed, boardwalks built and crossings installed.
The initiative was initiated under a past leadership, and it has consumed nearly two decades and seven prime ministers to reach this milestone.
About 80% of the route is now accessible and the majority of the remainder is due to be finalised by the year's end.
"This is fantastic - the most significant accomplishment I have done in my professional career," says the person who headed the endeavour.
Establishing the route required fresh laws as well as years of careful planning and extensive work along the water's edge to define a well-defined and uninterrupted footpath.
At numerous locations, new rights of access have opened areas that was formerly inaccessible to the general populace - including coves, dunes and cliff-tops between the trail and the water.
Accessibility for those with limited mobility has been improved so that additional individuals can experience parts of the trail.
Discontinuities in the established web of footpaths have been filled with a focus on moving the route closer to the shore and connecting sections of shoreline that had not yet been joined by a single walking trail.
But in a couple of spots, hikers must briefly step away from the trail. In the north-western region, for example, a vessel across the Mersey is required to continue on the route.
A particular section in south Devon is especially challenging. At the River Erme, there is no bridge or boat, and the terrain away from the coast is not public. Ramblers must therefore roll up their trousers and ford the waterway within an 60-minute period either side of low tide.
"It's all part of the journey," says the official.
The trail has been engineered with the heavier rains and coastal erosion that climate change is likely to cause in mind.
For the initial occasion in national legislation, there is a mechanism for the route to be relocated away from the coast – described as "moved back" – if the coastline erodes or changes.
This permits the path to adapt to the changing coast and aims to ensure that the shoreline route stays unbroken and practical for posterity.
The past month have illustrated how dynamic the route can be. An extensive part of the path on the cliffs outside a coastal town in Dorset was lost after substantial rainfall caused a landslip.
"The path was closed and a detour was put in place," explains a manager for that area. "The team quickly organised a short move with the property owner, and within days the path was accessible once more."
A major ramblers' group has been campaigning for greater public access to England's shoreline for a long time. A representative characterises the completed trail as "game-changing".
"This establishes a band of access land from the path to the tide line, so that implies you can leave the trail to go and walk on the beaches," the representative notes. "You can picnic - and on an set of islands you can for the first time appreciate our coast."
The trail also suggests the idea of a continuous shoreline hike around the whole UK coastline.
The freshly opened English coast path links with the Welsh coastal trail - an 870-mile path following the Welsh coastline. It was finalised over a ten years ago and was the pioneering trail in the world to track an entire country's shore.
There is not one unified managed shoreline path in the north, though a large portion of the coast is open to the public thanks to long-standing "access laws. Figures of its shore length range but it is often around five thousand five hundred miles.
Taken together, a non-stop shore hike around Britain would therefore amount to some 9,000 miles. At an average pace of a daily 15-mile hike, it would need {almost two years|n