Sunscreen

Do you have to wear biodegradable sunscreen for sting ray city?

While not strictly a law, it is highly recommended. There are nearby coral reefs that are affected by certain chemicals in sunscreen and there are LOTS of human visitors to the Sandbar each getting a bit of sunscreen washed off by the waves and the stingray noogies.

The chemical oxybenzone is a common ingredient in sunscreens that causes such problems for coral. See this Time magazine article on the topic:

How Sunscreen May Be Destroying Coral Reefs

If you search Amazon.com for "biodegradable sunscreen" you will find several options that are safer for our reefs. Buy 'em online or in your favorite store once you know which brands to look out for.