I leave mine up on the posts, so it's 5 feet off the ground.
The first year I had this setup, the posts were rather wobbly, this, with the high winds we get did not seem to good an idea so I flipped the posts to lie down - everything laid on the ground behind the pool - however, a mouse got in and ate a hole into it (luckily just a small hole), but this taught me NOT to leave it on the ground - those scoundrels will eat everything! - I made the posts permanent and now have no fear of the wind knocking anything over.