Swimming 39:00 [2] 1.0 km (39:00 / km)
Tried the pool as a plan B - more crowded than I expected, probably because it opened at 8 (instead of the usual 6) so the 6am, 7am and 8am crowds were all there at once. Not much energy here either, but felt as if I was not going too badly, so a bit surprised that this was just about the slowest I can ever remember going.
One thought is a lack of carbs in the last few days of Christmas food and then Christmas leftovers; if that's the problem, I did a certain amount of addressing it in the remainder of the day.