Puerto Rico remains an enticing summer travel destination as the COVID-19 vaccine rollout continues and travel restrictions loosen around the world. For Americans, the Caribbean island is a convenient tropical getaway that doesn’t require a passport or lengthy travel time, especially for those visiting from the East Coast. The U.S. territory is mostly open heading into the summer so travelers can look forward to a great experience with minimal hurdles to clear for entry. Here’s what visitors to Puerto Rico need to know before they go.