Blue Geo Cave 2 (NE entrance)

E side of Bu Ness, Fair Isle, Shetland.

NGR:	HZ 22660 72134
WGS84:	59.53452, -1.60114
Length:	100 m
Vert. Range:	Not recorded
Altitude:	Not recorded
Geology:	Bu Ness sandstone Formation - sandstone
Tags:	Other
Registry:	main

Based on observation of Report 1145 site CI10, this is the NE entrance of a tunnel which goes right through South Gavel.

Alternative Names: None recorded.

Notes: Needs a) photo of this entrance and b) passage through the tunnel to/from the SW end.

The above NGR is based on the observation in report 1145 that light from this end was seen at mid tide from the SW end and that the tunnel must therefore be straight and follow the strike of the sandstone layers. It seems to be on the cliff top, but that is an allowance for the lean NW of those layers. N Feilden.

Links and Resources:

Bing Maps, aerial photography. Note that the OS mapping shown in the box above right does not show Blue Geo correctly - it extends much further SW on aerial.
Pastmap.
Photo 1 shows the Blue Geo obliquely and a bit left of centre. The above NGR is out of view at the SW corner of the geo.
Rpt 1145 Harries, D.B., Purcell, A., Moore, C.G., Lyndon A.R., Porter, J.S., Saunders, G.R. and Hume, C.L. 2024. Distribution mapping and baseline monitoring survey of sea caves around Fair Isle. NatureScot Research Report 1145.

This entry was last updated: 2025-04-11 17:07:24

Errors or omissions in this information? Submit corrections/additions/comments for this entry to the registrars.

All database content Copyright 2026 Grampian Speleological Group.
Web Registry software by Matt Voysey.