Managed to get a few photos on a rare frosty November morning.
We cheated and had five lovely dry and sunny days in Portugal the first week in December. On our return our house sitter told us she had seen an otter by the ford one day as she drove down the drive. It went into the water, bobbed about and then swam off.
We have seen an otter here once before, and our neighbouring farmer saw a adult otter with young a few years ago upstream.