Editing Lindisfarne (section)

===Navigational markers===
{{Infobox lighthouse
| qid = Q18431329
| image_width = 100px
| mapframe=no
| construction = Unpainted square stone obelisk
}}{{Infobox lighthouse
| qid = Q106367910
| image_width = 100px
| mapframe=no
| construction = Unpainted square stone obelisk
| height = {{convert|25|m|ft}}
}}{{Infobox lighthouse
| qid = Q3739194
| image_width = 100px
| mapframe=no
| shape = quadrangular tower with black triangle daymark and light
}}
The [[Corporation of Trinity House]] maintains three [[beacons]] on or near the island, to guide vessels entering Holy Island Harbour: one is on Heugh Hill, the other two at Guile Point. Two of the three have navigation lights attached (and Trinity House classes them as '[[lighthouses]]').  Until 1 November 1995 all three were operated by [[Newcastle-upon-Tyne Trinity House]] (a separate corporation, which formerly had responsibility for navigation marks along the coast from Berwick-upon-Tweed to [[Whitby]]), but on that day responsibility for marking the approach to the harbour was assumed by the London-based Corporation.{{sfn|Corporation of Trinity House|2016|loc=[https://www.trinityhouse.co.uk/lighthouses-and-lightvessels/heugh-hill-lighthouse Heugh Hill]}}

Guile Point East and Guile Point West are two stone obelisks which function as [[Leading lights|leading marks]], guiding vessels approaching the harbour from the east. The beacons, which stand on a small tidal island on the other side of the channel, were established in 1826 by Newcastle-upon-Tyne Trinity House (in whose ownership they remain). When aligned, they indicated the safe channel over a submerged [[Bar (landform)|bar]].{{sfn|Imray|1854|p=19}} Since the early 1990s, a [[sector light]] has been fixed about one-third of the way up on the Guile Point East beacon.{{sfn|Corporation of Trinity House|2016|loc=[https://www.trinityhouse.co.uk/lighthouses-and-lightvessels/guile-point-east-lighthouse Guile Point East]}}

The Heugh Hill Light is a metal framework tower with a black triangular day mark, situated on Heugh Hill (a ridge on the south edge of Lindisfarne). Prior to its installation, a wooden beacon with a triangle topmark had stood on the centre of Heugh Hill for many decades.{{sfn|Imray|1854|p=19}} When aligned with the church belfry (on a bearing of 310°), it indicated that the bar had been cleared and provided a line of approach into the harbour.{{sfn|Fowler|1990|p=22:137}} 

Nearby on Heugh Hill is a former coastguard station (recently refurbished and opened to the public as a viewing platform).<ref>{{cite web |title=The Heugh |url=https://visitlindisfarne.com/listings/attractions-activities/the-heugh/ |website=Visit Lindisfarne |access-date=5 April 2025}}</ref> An adjacent ruin is known as the Lantern Chapel; its origin is unknown, but the name may indicate an earlier navigation light on this site.<ref name="HeughArchaeology">{{cite web |title=Archaeological Excavations on Lindisfarne Heugh |url=https://www.islandshirearchives.org.uk/content/areas/holy-island/archaeology/archaeological-excavations-lindisfarne-heugh |website=Islandshire Archives |access-date=5 April 2025}}</ref>

On the other side of the island, the Emmanuel Head [[daymark]] provides a visual navigational [[Fix (position)|fix]] during daylight hours. It is a white brick pyramid, standing {{convert|35|ft}} high, on Emmanuel Head at the north-eastern point of Lindisfarne. Built in 1810, it is said to be Britain's earliest purpose-built daymark.{{sfn|Jones|2014}}{{page needed|date=June 2022}}

<gallery heights="165" widths="200">
File:Emmanuel Head Beacon - Holy Island - geograph.org.uk - 63388.jpg|Emmanuel Head Daymark
File:Former coastguard station and remains of Lantern Chapel, The Heugh, Holy Island - geograph.org.uk - 409679.jpg|Public viewing platform and former coastguard station with remains of 'Lantern Chapel'
</gallery>