Only did the trip down Main Beach this time, i.e. none of the inland tracks. Coming back it was only 2 hours before high tide, but there was still plenty of sand (though soft) on the beach. No risk of running over any plants growing near the sand dunes.
The main beach section of Straddie on high tide can be tight in places so be sure to plan your barge trips with the tide. The camping zone on main beach is great, protected from the elemants however make sure you have plently of insect repelant. Great spot for family and great fishing on the southern end. Low tide easy drive. Some of the cuttings from camp sites to beach were chopped up but nothing to worry about!
Some of the inland tracks from amity to point lookout were closed off. Main beach was pretty rough, sand dunes were good fun though, we got caught by the tide on the way back from the sand dunes bit of panic but all good at the end.