The valleys of the river Helford and Loe Pool form the northern boundary, with the rest of the peninsula surrounded by sea.
Helston, the nearest town to the Lizard peninsula, is said to have once headed the estuary of the River Cober, before it was cut off from the sea by Loe Bar in the 13th century.
[7] Geomorphologists believe the bar was most likely formed by rising sea levels, after the last ice age, blocking the river and creating a barrier beach.
The beach is formed mostly of flint and the nearest source is found offshore under the drowned terraces of the former river that flowed between England and France, and now under the English Channel.
[11] It was here that tin ingots were weighed to determine the duty due to the Duke of Cornwall when a number of stannary towns were authorised by royal decree.
Commencing on 17 August 1903, it was the first successful British railway-run bus service and was initially provided as a cheaper alternative to a proposed light railway.
The transatlantic record run of the unaccompanied one hand sailor Thomas Coville within less than 5 days in his sailboat Sodebo Ultim from New York to Europe landed here on 15 July 2017.
The biggest rescue in the RNLI's history was 17 March 1907 when the 12,000-tonne liner SS Suevic hit the Maenheere Reef near Lizard Point in Cornwall.
In 1801, the king's pardon was offered to any smuggler giving information on the Mullion musket men involved in a gunfight with the crew of HM Gun Vessel Hecate.
The runways still exist and the site is used by a local Air Cadet Volunteergliding Squadron 626VGS and as an emergency/relief base for RNAS Culdrose (HMS Seahawk).
It is also the home base for Merlin Squadrons embarked upon Royal Navy warships, the Westland Sea King airborne early warning (AEW) variant helicopter, a Search And Rescue (Sea King, again) helicopter flight, and some BAe Hawk T.1 trainer jets used for training purposes by the Royal Navy.
As befits the base's name, a non-flying example of a Hawker Sea Hawk forms the main gate guardian static display.
The parishes on the peninsula proper are (west to east): The Lizard's political history includes the 1497 Cornish rebellion which began in St Keverne.
The uprising was routed on its march to London and the two leaders, Michael Joseph and Thomas Flamank, were subsequently hanged, drawn and quartered.
In 1869, John Pender formed the Falmouth Gibraltar and Malta Telegraph company, intending to connect India to England with an undersea cable.
In 1900 Guglielmo Marconi stayed the Housel Bay Hotel in his quest to locate a coastal radio station to receive signals from ships equipped with his apparatus.
He leased a plot "in the wheat field adjoining the hotel" where the Lizard Wireless Telegraph Station still stands today.
Recently restored by the National Trust, it looks as it did in January 1901, when Marconi received the distance record signals of 186 miles (299 km) from his transmitter station at Niton, Isle of Wight.
The site was later chosen for the Telstar project in 1962; its rocky foundations, clear atmosphere and extreme southerly location being uniquely suitable.
[20] The peninsula contains 3 main Sites of Special Scientific Interest (SSSI), both noted for their endangered insects and plants, as well as their geology.
Contrasting plant communities grow side-by-side in a mosaic that changes within a few metres but also changes markedly over time with the cycle of heath fires.