Arch/tunnel (S entrance, W of Crathie Pt)

NGR:	NJ 54669 67261
WGS84:	57.69288, -2.76205
Length:	17 m
Vert. Range:	6.3 m
Altitude:	-0.3 m
Geology:	Cairnfield Calcareous Flag Formation - calcareous semipelite
Tags:	Other
Registry:	main

A short tunnel or long arch aligned with bedding strike NNE/SSW. It is 4.7 m wide. At the other end it is open to the sea. At this S end, it is the stem of a 'T' with a rift geo which runs NW/SE. This is subtidal at the NW end and intertidal at the SE end.

Length from NGRs based on Bing Aerial maps. Other dimensions measured by N Feilden 30/6/26. Altitude is ACD.

Links and Resources:

The current OS 1in has 'natural arches' and entrance dots corresponding to the Bing Aerial NGRs.
Photo 1 shows this entrance obliquely, from the east side, at a tide level of 2.1 m ACD on 30/6/26.
Photo 2 gulls nesting above this S entrance. 30/6/26.
Photo 3 looking through (NNE) from just inside this S entrance. 30/6/26.
Bing Aerial with added white arrows to indicate the entrances. The bedding of the metasediment is about vertical and the tunnel is aligned with that bedding in plan.

This entry was last updated: 2026-07-04 15:55:46

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