From the tropical shores of the Hawaiian Islands and the quartz sand of the Gulf Coast to the dramatic Pacific Northwest sea stacks and historic East Coast barrier islands, the United States is home to some of the world’s most breathtaking coastlines. Whether you are looking for world-class surfing, calm turquoise wading pools, or wildlife-packed coastal escapes, here is the ultimate guide to the Top 20 Best Beaches in America. 1. Poipu Beach Located on…