Bikini Atoll, a UNESCO World Heritage Site in the Marshall Islands, is primarily known for its historical significance as the site of numerous nuclear weapons tests conducted by the United States from 1946 to 1958. Today, it attracts primarily scuba divers interested in exploring the well-preserved shipwrecks on the ocean floor, remnants of the nuclear tests. Access is highly restricted and requires permits due to radiation concerns and the fragile ecosystem. Visits are typically guided and involve organized diving tours. Accessibility is extremely limited, and independent travel is strongly discouraged. The cost can be substantial due to the remoteness and logistical challenges. The optimal time to visit is during the dry season (December to April). Typical visit duration is about a week, primarily focused on diving. Note: Radiation levels are monitored, but residual contamination remains a factor.