TIED to a coconut tree on the beach in the fishing village of Lambeau, on Tobago’s windward coast, is a million-dollar Bavarian yacht that will likely never sail again.

The boat, named the Vagant, has been there for five years, settling into the sand, lashed by the high hide, watched over by fishermen who found the vessel floundering on the reef one morning, with no one aboard.

Days later, the village would learn the fate of the people aboard—an elderly Polish couple who had set off from the Canary Islands on the other side of the Atlantic Ocean on November 2, 2017.

It was the beginning of their retirement dream to circumnavigate the globe.

But the yacht never made it to its first port of call in the Caribbean.

Four hundred and fifty miles east of Barba­dos, the dream of 74-­year-old Stanislaw Da­browny and his wife, Elizabeth, ended.

At her home in Gdansk, Poland, the cou­ple’s daughter, Aga Blazowska, answered a call from her mother on November 20.

Elizabeth was screaming her daugh­ter’s…