Friday's interval session wasn't so bad. I did four reps of 6 minute 10k pace efforts, with 3-minutes jogging rests. Although the canal path can be a bit slippy and sandy, the DS Trainers were fine (they are light, but low on texture and grip).
I did a sort of organic upper body workout (seven bags of shrub prunings now await transportation to the tip), rounded off with a sauna.
It looks like being a hot sort of day tomorrow (max 28 C), so I'm planning to start my long easy run on the early side. I should be home before the grill really gets going, but to be on the safe side I'll loop back past the house to top up on fluid and sunblock.