Region: Elands River Mouth

Elandsriver Mouth

Introduction

During April 2000, a small team of Cape Peninsula Spelaeological Society
members spent a week exploring and surveying caves in the area of the
Elands River Mouth, near the eastern end of the park. The primary
objective of the expedition was to find Guano Gat at the Elands River
mouth. This cave is mentioned in a forestry report in 1927, and was
mentioned by Mr John Allen of the National Parks Board. Secondary
objectives were to look for new caves, and survey both new and
previously visited caves.

Mr Andre Riley of the National Parks Board, and Mr. Briganza Johnson of
SAFCOL were most helpful in identifying potential caving areas, and in
allowing us to cross both SAFCOL and SANP land.

Elands River Mouth (ERM)

A number of visits were made to both the eastern and western sides of
the Elands River Mouth. As with most of the river gorges along this
coastline, the river has cut through the steeply dipping beds of the
Cape Fold Belt. The direction of the river gorge is parallel to the dip
of the beds and the river has exposed and enlarged fissures in these
beds. All of the caves around the Elands River Mouth were formed by soft
bedding layers being washed out from between harder surrounding bedding
layers.

We explored 5 small caves (10m to 40m) along the eastern riverbank, and
one large cave (80m) on the western bank.

Guano Cave – 80m

After thoroughly searching the eastern bank of the river without finding
anything that remotely resembled a Guano Gat, we shifted our attention
to the western bank.

SAFCOL gave us permission to use the forestry roads to reach the cliffs
above the mouth of the river. We descended to sea level, and then
clambered over the large slabs of rock that jut into the river. We
finally found the cave between two of these slabs. The entrance gully
has a pile of very loose rubble that has partially filled the cave
entrance, and left a very loose slope leading up to the entrance, then
down into the cave.

This slope leads into a large passage about 6m high by 6m wide. The cave
gradually gets narrower and lower before ending about 80m from the
entrance. There were about 300-400 Rosettus aegyptiacus fruit bats in
the cave, many of which flew out of the cave and roosted in the
surrounding cliffs until we had left. We also found a lot of wood lice
and plenty of tube web spiders. We did a detailed survey of the cave and
noted that guano had been removed a long time ago. There is an obvious
tidemark on the wall to show how deep the guano once lay. There were
also two iron pegs with ring attachments fixed to the right hand wall
outside the cave, facing into the cave. Scalloping and undercutting
resulting from wave action can be seen along the right hand wall facing
into the cave.

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