The USGA has published three excellent videos explaining the Rules of Golf regarding loose impediments, water hazards, and immovable obstructions. I highly recommend that you take a few minutes to watch them.
Here is the link: http://www.usga-rules.com/index_return.html
After you get there, click on the topic, and then click on Introduction.
There are six other videos that are still in the works. I'll let you know when they become available.
Linda
