The last time, i went to the Changi Naval Base Open House was in 2010, this round, there's an open house on 18th and 19th May 2013, went there to have a look. Free shuttle bus are available from Singapore Expo.
I loves the design of the T-shirt, but too bad, they didn't sell it, only for the staffs there.
These 2 guys saw me taking my camera, pose and let me take picture of them.
Only manage to view one of the inside of the ships as most of the other ships, the Q are very long.