Talk

www.joules.com/Women/Handbags-Purses/Joulesbigbag/Womens-Hold-All/Sky-Blue-Peony?id=S_JOULESBIGBAG|SKBLUPE

It's a cuter version of a big blue ikea bag.

I have a giant Longchamp LePliage which I find extremely useful for traveling, it doubles as a beach bag, pool bag (slightly waterproof!), hand luggage, market tote. I usually pop a tiny cross body clutch inside and use that for my essentials.

Should have said - I really like my bag as it closes, I couldn't find a beach bag which closed and all my stuff kept falling out.

I have a huge sling bag that I bought years ago in primark. It folds up small but holds as much as a suitcase!

Your Dc can both have a bag too with stuff in them to keep them occupied on the flight. Mine have little Nike back packs ideal for little ones.

North face rucksack.
I know that's not the S&B answer you're looking for but I find life too short for shoulder bags in airports or walking to/from the beach.

I have Le Pliage too, it's brilliant for travel as it cleans easily and it's huge, and smart and goes with casual and semi smart outfits.

And a small crossbody which you can chuck inside Le Pliage if you need to, I have a few but always go back to my trusty Marc Jacobs Percy (mine is taupe with silver hardware) it's great as the zip makes it quick and easy to get into, I find flap opening bags more of a faff, it's also just such a sturdy and comfy bag.