The one in Florida where I grew up scuba diving, snorkeling, fishing, water skiing, etc. I have been to many beaches in my life in Mexico, California, several states on the Atlantic Ocean side of the US, and in Canada. I have also visited all 5 of the Great Lakes.
Sometimes people don't realize how wonderful they have it and take the natural beauty around them for granted. If I had to give another beach a close rating to Destin, Florida where I lived and was raised for most of my life, I would say that Cozumel, Mexico and Cancun, Mexico are the best. But not quite as good as the beach where I lived.
But I have never been to Europe or Asia, and I hear that the beaches there are fabulous in some areas! I have heard that Italy has beaches that are spectacular, also that Croatia has some very nice beaches. Also I hear great things about Costa Rica and the US Virgin Islands and Puerto Rico, and the Turks and Caicos, and many others I have never had the privilege to visit. After COVID-19 is under control I would like to travel again. I am afraid if I go to Italy I would never leave, though. I would probably eat my way through the country and be in a food coma so I would miss my flight
My nephew and his wife are being transferred from Dubai to Vietnam (his wife is a German diplomat, he is an American "house husband"). I hear both Thailand and Vietnam have some lovely beaches, so maybe I will get a chance to visit them at their next post.
Edited to add that
Morning Glory just posted a lovely photo of the beach near where she lives. So many beaches, so little time, sigh.