Submersible history and technology/ 有人潜水調査船

Entrance of Abyss Observatory: Japan & Singapore collaboration
http://maps.secondlife.com/secondlife/Farwell/23/73/107

Deep Submersible history (Farwell)
http://maps.secondlife.com/secondlife/Farwell/231/232/30

Technology of deep submersible (Farwell)
http://maps.secondlife.com/secondlife/Farwell/106/241/30

2000 m depth journey into the Deep (Jabara Land Atlantis)
http://maps.secondlife.com/secondlife/Jabara%20Land%20Atlantis/128/136/3503