I go on canoe trips out to a penisula. There are NO TREES. I am looking for ways to still hang, without a lot of weight/bulk. Oh BTW, it's all sand. I have used a couple of 2x4s standing on end w/ 2 guy lines at each end going to anchors and a ridge line in between. I just don't know if the anchors will hold in the sand. In soil, they work great. Any ideas?