We did a 1 week tour from Perros Guirec to Aberwrach along the N coast of Brittany. We=Mrs Mugsy, Mini Mugsy (3 1/2yo),Micro Mugsy (1y2months) and myself.
Due to our stunning planning and suspected slyness from the side of Mrs Mugsy, she could not carry panniers as we could not get a front rack in time and she could not carry rear panniers due to the childseat. Sooooo that left me with rear panniers and termarests on the bike and towing the cougar chariot with (not so) mini mugsy, a 35l dry bag, the tent, bucket and spade.
This was camping. I leapfrogged the car ever 3 days or so, so we could do an A to B rather than a loop.