With chunky tyres on the Tojo I don't even need to let air out for 99% of my beach work. If I do decide conditions justify it I drop straight down to around ten lbs.
The best thing anyone can learn in 4x4 driving is to stop and have a think if you're not sure about the conditions ahead.
Nothing wrong with reversing a little bit or skipping around a crappie patch if possible.
Once you're "in" all other possible options generally disappear.
And if you are talking about Wedge Island shacks just north of Lano they are still there and Green Islands( Grey) shacks as well.