It appears as though I get first shot at the old and over used cliche / joke on this one - woo hoo!
When you get close to the ground, turn on the landing lights. If you don't like what you see, turn them back off. It doesn't matter either way cos that's where you're destiny's taking you.
In all seriousness, alot of people recommend a ditching if it's possible to find water. If you're over forrest then you use the standard tree landing ie try and stall just above the canopy line and drop in hoping that the branches will take your fall / slow it down plus it's better to have vertical movement in this situation than trying to fly horizontally through the tree trunks. Over mountains - when you can't see !!!!e - personally i'd accept fate, go for one last skydive and end it on a high note.