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

NGR:	NJ 54678 67276
WGS84:	57.69302, -2.76191
Length:	17 m
Vert. Range:	6.3 m
Altitude:	-0.3 m
Geology:	Cairnfield Calcareous Flag Formation - calcareous semipelite
Tags:	Cave, Tunnel, Arch, SeaCave
Registry:	main

A short tunnel or long arch aligned with bedding strike NNE/SSW. It is 4.7 m wide. At this end it is open to the sea. At the 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 at a tide level of 2.1 m ACD on 30/6/26. There are apparent joints overhead but these are aligned with the metasediment bedding. See the Bing Aerial view below.
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: 2026-07-02 12:30:31

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