Sand Key, along with Rock Key and Eastern Dry Rocks, is part of the conservation area known as the Sanctuary Preservation Area. Like Rock Key, the snorkeling here is excellent but the area also provides some pretty decent diving. Sand Key changes with the weather, meaning that the tide and a variety of other conditions change depending on the weather, allowing for each dive to be a unique experience. There is a light tower close to the key that people can climb up and get a great view of Key West. The snorkeling and diving here is enhanced by the coral reef that surrounds the small isle. The reef is home to grouper, barracuda, and loggerhead turtles. Some of the site can drop to 45-70 feet. The key is about seven miles southwest of Key West and the best way to find it is by looking for the lighthouse.