Not to mention the fact that dropping an anchor squarely in that sand hole, even after having been diving on it hundreds of times, can still be challenging. Many times it's not worth the risk. Consider an alternate dive site or do a drift dive. Other advantages of using the buoys are site location. If you are unfamiliar with the area, it's a pretty safe bet that there's something nice to see around the buoy, ad you can always find that same spot again.
Security is another advantage.
The buoys are designed to hold boats considerably larger than the average diver is likely to use. So if you have selected a dive site that has no buoys you know have to donate thought to anchoring. Anchoring a boat isn't considered an art form by many boaters, only the ones who have had regretful experiences from poor anchoring practices, or have seen the damage that a thoughtlessly dropped anchor can cause. This article is not designed to make everyone an anchoring artist, but to maybe increase boater awareness. The main objectives when anchoring in the Fabulous Florida Keys should be avoiding damage to the ecosystem, vessel security, and ground tackle retrieval.