Firstly while you’re on the barge, lower your tyre pressures to around 18 psi. A longer tyre footprint will keep you out of trouble most of the time. Secondly, engage 4WD. You’d be surprised at how many people forget to do this! Note to self; if the light is flashing, you’re not in 4WD!
Disengage traction control. For the most part, this is more of a hindrance than a help whenever you are driving on sand. Drive slowly off the barge ramp, but don’t stop at the bottom, this is where the sand will be softest.
Another tip is to use your vehicle’s momentum and avoid high torque wheel spin when moving onto the beach. Long arcing turns are always better than full lock turns in the sand. Finally, know what the tide is doing when you arrive.