Huge seed, known as Sea Bean "Entada gigas," Sea Heart, Horse Bean, Horse Eye, or “ojo de venado,” Deer Eye
The world’s most famous drift seed. Goes all the way from here to Norway. It’s called a sea bean (or sea heart). It’s a seed that comes from a tropical plant and floats all over the world. Some come from as far as Indonesia and the Philippines. They say it’s good luck and are actually referred to as lucky sea beans.
It's not from the coast it mostly grow inland and the seed get carried by creeks and stream that runs into rivers and rivers washes it in to the sea or ocean that's why people call it sea bean or sea heart.
It grows from a vine, locals call it horse beans. I grow up in a community far from sea and horse love the leaves of the vine. Its definitely in the legumes family.
Entada gigas is the name of the vine and it usually is found in the riparian forest (near the rivers and creeks). It is a legume and the seeds come in spiraling pods up to 6ft in length. Just like a bean pod. The Antelope Trail at Cockscomb is a good place to look for them near the first creek you cross. There are several species that look similar, some from the tropical American region and some from West Africa. also called the Monkey Ladder vine.