Let’s go diving to at an underwater post office! Cindy and Ryan are continuing their jouney to Green Island, where they collect even more must-visit check-in spots! Dive into the mysterious Underwater Steel City, a thriving artificial reef located at a depth of 30 meters. This towering steel structure is now covered in corals and home to schools of fish, including friendly batfish that love to accompany divers. Next is Green Island’s very own Atlantis, a fascinating underwater relic resembling an ancient city. This site transformed an old pier by the sea into a mesmerizing habitat for marine life, perfect for stunning photos. Beginner divers can try their luck at Shilang, where you can visit the world’s deepest underwater post office. Write a waterproof postcard, snap a picture with the adorable seahorse mailbox, and send well wishes from 12 meters below the surface. How many diving photos did you collect on Green Island? Let us know in the comments below.