A tombolo, from the Italian tombolo, derived from the Latin tumulus, meaning 'mound,' and sometimes translated as ayre (Old Norse eyrr, meaning 'gravel beach'), is a deposition landform in which an island is attached to the mainland by a narrow piece of land such as a spit or bar. Once attached, the island is then known as a tied island.

Tombolo
Tombolo
Tombolo
TOMBOLOTombolo
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ON THE FORMATION OF ZHIFU TOMBOLO
FORMATION OF GONGQIAN TOMBOLO IN DONGSHAN ISLAND
The city of Tyre, Lebanon and its semi-artificial tombolo
A PRELIMINARY RESEARCH ON THE DEVELOPMENT OF THE TOMBOLO OF QIMU ISLAND
DEVELOPMENT OF THE CORAL REEFS AND TOMBOLO OF LUHUITOU PENINSULA, SANYA CITY,HAINAN PROVINCE
Gli artropodi del tombolo antistante la Laguna di Burano (GR): Ambiente, microclima e primi dati sul popolamento animale
Sandy Shoreline Response to Offshore Obstacles Part 1: Salient and Tombolo Geometry and Shape
The Role of Wave Diffraction in the Formation of St. Ninian's Ayre (Tombolo) in Shetland, Scotland