The only fresh water source on the islands other than rainfall is this C18th well with
limestone well-head covering 5 steps down to the pool

The well-head stone roof. The modern building beyond is on the site of the second C18th
keeper's cottage, long since demolished

Looking north-east. The C18th well-head is in the background beyond the C18th
cottage and modern tank

The interior of the well with the steps leading down, some five in all