Hanon Crater is the largest crater with a diameter of more than 1km and the only maar type crater in the Korean Peninsula. It is like a ‘time capsule of the Earth’s environment’, preserving the invaluable scientific information that reveals the process of the Earth’s climatic and ecological environmental changes over the past 5 million years. However, the value of the crater has been unattended and the crater itself has been damaged and neglected. About 550 years ago, as people tore down the wall of the crater to use the crater as farmland, the crater lake disappeared. In recent years, damage has been done to the crater under the threat of development without thought for the environment. This study verifies the climate and environmental value of Hanon Crater and the value of the maar lake sedimentary layers of the crater as a key national asset and the necessity of its reatoration as presented in the recommendations of the 2012 WCC and provides supportable reasons for making the restoration project as a national one in conjunction with IUCN and the international community. In particular, this study, in which the Commission on Ecosystem Management of IUCN also participated, suggests the objectives, strategies and alternatives in restoring the crater wall, lake, and vegetation based on Ecological Restoration for Protected Areas: Principles, Guidelines and Best Practices (Keenleyside et al., 2012) and ways to utilize the cater as a national resource after the restoration such as establishing a center for studying ancient organisms and climate and setting up a maar museum.”

Abstract
 Chapter 1 Background of the Study
 Chapter 2 Analysis of the Current Situation
  Part 1 General Status
  Part 2 Natural Environment
  Part 3 Human and Social Environment
 Chapter 3 Geological, Ecological, and Environmental Value of Hanon Crater
  Part 1 The Value of the Only Maar Type Crater and Sedimentary Layers of the Korean Peninsula
  Part 2. Geological Values of the Hanon Volcano
  Part 3 Geopolitical Values
 Chapter 4 Restoration Goals and Directions
  Part 1 The Progress of the Restoration Promotion of the Hanon Crater
  Part 2 The Status of the Hanon Crater and the Grounds for Promoting a National Project
  Part 3 Master Plan for Restoration
  Part 4 Management and Utilizing Plan
  Part 5 Financial Investment Plan
  Part 6 Expected Effect for Restoration
 Chapter 5 Policy Proposal
 References

• Keith Bowers(IUCN CEM, President of ASLA)
• Kim Eun Shik(Professor at Kookmin University, Secretary General of International Association for Ecology)
• Yang Young Chul(Professor at Jeju Nat’l University, President of Korean Association for Local Government Studies)
• Lee Suk Chang(President of Jayeonjeju, Extraordinary Member of Ecological Society of Korea)