The Broomway is a 6 mile long road off the coast of Essex only accessible at low tide. It has been attributed to over a hundred deaths since the 15th century. :
Foulness Island on the Broomway | The "Broomway" is an ancie… | Flickr
The Broomway: The deadly Essex path that's killed more than 100 people - Essex Live
Running Britain's deadliest trail | LFTO
The Broomway - Wikipedia
Walking Britain's 'deadliest path.' - The Washington Post
Britains Deadliest Pathway | The Broomway | Foulness | ... by Places | Rochford District Community Archive
This desolate English path has killed more than 100 people - BBC Travel
The Broomway and a London Airport - A London Inheritance
The Broomway: The deadly Essex path that's killed more than 100 people - Essex Live