High Tide	02:21 (2.50m)
Low Tide	08:48 (0.70m)
High Tide	15:07 (2.20m)
Low Tide	20:41 (1.00m)

Sea temperature: not really sure, DK dipped the thermometer in the shallows after we'd go out and it fluctuated between 6 and 7, but it felt much, much colder.
Sea conditions: Beautifully calm - had it been warmer it'd have been proper swimming weather
Weather: icy and cold, not too much of a wind though
Joined by: Mertz, but not to swim, he had been walking the dogs and found us
Topics of conversation:

The sunrise -  the above is an optical illusion, I wasn't going into the sea with my phone, the sun was just getting bigger and the waves were coming in. It was so wonderful to have light as we swam again, it's been so dark this week, (both the weather and our collective moods).
The Christmas swim  and weather we should prepare a synchronised swimming performance to show our toughness. This conversation was brought about by my shouting as we went in and The Pirate calling to me as I waded into the thigh high water with "STOP! we've gone far enough! We can just lie down here!"
Masterchef -  at length.
Mabel and Bosco had a very loud chat, we couldn't understand what they were talking about, but we decided there was quite a lot of bad language involved...