Hi all. I just came across this little ripper of an item for anchoring anything in soft soil. I have been developing a portable hammock stand in case I find myself in a spot where there are no trees to hang from. I set up a system with some tent poles I had, but I had to use 3 tent pegs per guy to anchor it in my lawn. But these 'Blue Screws' look like the answer, particularly in soft soil or sand. Check out the video link. I've ordered some online today to check them out.
I rang the company, and they tell me that the small version will hold 100kg in sand! I guess it depends on the softness of the sand but 4 holding up a hammock should be enough in anything I would think.
Anyway, I'll post my findings when they arrive and I test them out.