A nuke is just a light show and a bang. You can be lounging on a beach and enjoying this like the 4th of July, then go right ahead and keep enjoying the beach after the show is over. It didn't hurt anything on the beach. Its still there, untouched. Birds still flying around, without a care in the world.
https://youtu.be/3X5Jh0KlDdg
https://youtu.be/QysmLrAZUgo