Blue Geo Cave 2 (SW entrance)

E side of South Haven, Fair Isle, Shetland.

NGR:	HZ 22595 72058
WGS84:	59.53384, -1.60229
Length:	100 m
Vert. Range:	14 m
Altitude:	-2 m
Geology:	Not recorded
Tags:	Cave, Tunnel, SeaCave
Registry:	main

'Entered by snorkeller 19/8/21. Wave surged so assessment limited to entrance area. Two adjacent entrances (CI10 & CI11).

CI10 entrance estimated as ~5 m wide at waterline and ceiling ~12m ACD. Floor of large boulders with some breaking surface. Water depth estimated ~2 m BCD at entrance and shallowing to less than 1 m BCD within 10 m of roof closure. Passage a high rift inclined to NW with light penetrating through from eastern side. Probably links through to NS05 on the east side of Bu Ness (~145 m distance by GIS). ' [Report 1145].

Alternative Names: CI10

Notes: NS05 is quite a bit too far north to be the NE entrance because the tunnel is straight and aligned with the strike (NE/SW) of the sandstone layers.

Length calculated from this NGR and that of the NE entrance. See entry for NE entrance for explanation of its estimated NGR.

Links and Resources:

Bing Maps, aerial photography.
Photo 1 this entrance is on the right, marked CI10. Taken 26/6/19 when it was about mid tide (1.3 m ACD). Note light from far end of the tunnel. p23 of FI Caves (GSG version) which is an annexe of Report 1145 below.
Photo 2 closer view of entrance on 19/8/21 when the tide was 1.7 m ACD. No light from the far end visible in this photo. p24 of FI Caves (GSG version) which is an annexe of Report 1145 below.
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: 2025-04-18 18:46:38

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