The document describes a learning design for a virtual environment called "Discovery Hong Kong" created in Active Worlds. The design includes 4 sessions for secondary students to learn about popular places, nature, cuisine, and festivals of Hong Kong. Students complete learning tasks like exploring virtual locations, answering questions, and collaborating in a group blog. Various resources like videos, audios, and websites are provided, and learning theories of constructivism and the 9 events of instruction are applied.