Hi @Lisa Pemberton am not an experts but below are the few things i have done.
1. Rear bumper scooping need to be sorted out in newbie drive itself by fixing a plate to stop scooping the sand. there is a topic available for this solution and advice in Carnity forum.
2. Cleaning the air filter will be better after each drive, because lots of sand will go inside.
3. If you are unplugging the traction and abs switch under the hood for the drive, then when you take the car for service inform the people to blow some air and clean the pug inside the switch, because some sand always will be there inside.
4. Better to trim the lower part of front bumper, because in Pajero if the front bumper hit on the sand, the lower part will bend inside and every time we need pull it back other wise it will touch on the tire.
5. Always checking Coolant, engine oil, transmission oil before the drive.
i believe other experts and leaders in Carnity can give you more inputs
thank you.