Hatt Rock was amazing as always. Vis was at least a bright 10m but since checking the photos there was a lot of tiny jelly type plankton in the water column – the sun shone all the way down the depths as far as 35/40m, reflecting on the plankton – lovely blue sea, no current, some fish life but not a lot – lots of colourful anenomes but plumose were closed. Lots of interesting tiny jelly fish on the deco stop.