How far would you drive for a week's holiday?

[Yika]

Just wondering what would be the tolerable limit for others (if driving alone - I'm a single parent travelling with my tween). I've driven 11 or 12 hours each way when going on a two-week holiday but now we are going for only a week to a destination around 10-11 hours away (I'm already on the continent) and wondering if it's reasonable or we should fly or go by train. We will definitely need a car at our destination.

Well I must be a wuss too.
I was going to say nothing more than 4 hours planned (obviously this can be longer if you get stuck in traffic on a Summer's Saturday).

I guess it depends if you enjoy actually driving, rather than seeing it as a functional necessity.
Combined with what your options are for either somewhere much, much nearer.
combined with if there is something, or someone special you are traveling all that way for.
Combined with costs / ease of alternative travel
and probably other things to factor in.

We drove for 13 hours for 2 nights away this weekend. Mind you it wasn't meant to take that long as it was only 380 miles, but a few sets of road works and the motorway being closed due to a crash managed to conspire against us. So compared to that your plans sound very reasonable to me!
I think what is acceptable is a very personal thing and depends a lot on what you are used to and how you feel about driving. We live in a rural area and everything is a long way away, plus our families are hundreds of miles away. So we are used to long drives, and our children have been used to long trips from an early age. We'll happily visit our nearest family members for a day, with a 3 hour trip each way, and whilst our accidental marathon of this weekend is something I'm in no hurry to repeat, I wouldn't think anything of 5 or 6 hours each way for an overnight visit to someone. My DH did huge mileages for work pre covid and though thankfully he is based at home a lot more now he still does journeys of 3-6 hours each way in a day fairly often. Even my children's extracurricular activities are an hour or more's drive away. So it's normal for us, and what you are planning sounds fine to me if its something you're also used to and you don't mind driving. But I can imagine that for someone who doesn't drive much and lives somewhere where everything they need is close by it would sound terrible. Neither is "wrong " of course, it's just what you're used to. Similarly my DH loves boats and will pick a long ferry crossing over a short flight any day, because for him, the trip is part of the holiday, but others would hate it. If you think you'll enjoy your trip, go for it.

I think I would split it to drive 6-7 hours on day 1, then you’ll be there at lunchtime on day 2 & relaxing begins. We like to choose a nice hotel and restaurant for night 1 so it feels like a treat night away, not an unpleasant hurdle to overcome. Driving on the continent, we tend to find, is far nicer than driving in the UK too.

I would not do more than six or seven hours, would instead take the train and hire a car when I got there, perhaps not for the whole time and do the things local to the hotel for the first couple of days.