As Powerin said, you have miles of beach below, in our case the tide was going out so we had plenty of hard sand - also indicated by the 4x4's driving along showing where the hard, soft spots are. You can see how far the tide comes up, so you would try and pick a spot where you can pull the aircraft up as far onto the beach as you can, so if you couldn't fix the problem you had less risk of being flooded when the tide came back in. Over the trees, and scrub, well it's just like anywhere, do the best you can. As Pete and I discovered there were little airstrips everywhere around there.
I'm not sure Nev, seems all okay here. Hopefully you work something out.
From what I remember of your Lightwing, it probably would be similar, although much better view on the ground, and looooooots more power!