The HMT Rinovia was a steam fishing vessel, requisitioned as a mine sweeper in 1939. In 1940, it hit a mine and sank. It now lies in around 55m and is a really nice shallow trimix dive. It is small enough to be covered in a single dive, even at this depth. Lying fairly intact and upright, it can have a covering of fishing nets, which are themselves, normally covered in Plumose anemones.
Little remains of the wreck of the requisitioned trawler, the Sevra (HMT or HMS). There is some discussion as to which wreckage belongs to the Sevra and that of the AN2, both were very similar ships and both used as mine sweepers. They sank within a few hundred metres of each other, within two days or each other and were both flattened at the same time in 1949 by HMS Caldy. After the levelling, the records got mixed up.
Not an easy site to find, it can be easily missed underwater too, it is quite flat.