A promontory is a raised mass of land that projects into a lowland or a body of water. Most promontories either are formed from a hard ridge of rock that has resisted the erosive forces that have remo
East side of the Freshwater Steps promontory, at the western end of Egmont Bight, Dorset, U.K.
A promontory, on Lake Baikal, Russia
The Citadel of Namur, with the Meuse and the Parliament of Wallonia in the foreground
An isthmus is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait
Promontory
…Headland – Landform extending into a body of water, often with significant height and drop Isthmus – Narrow strip of land connecting two larger land areas The dictionary definition of promontory at Wiktionary…
The sandy isthmus or tombolo "The Neck" connects North and South Bruny Island in Tasmania, Australia.
Aerial perspective of the isthmus of Bruny Island