Free worldwide charts online:
http://www.shipfinder.com/main/defaultwork
Firstly click "English" on the top right corner.
Secondly select full on the top right of the Chart area. (Labelled "Chart - F" of some such.)
The Eastoke Bouy at Chi is there (Feb) & that's not made it onto my recently updated Navionics app yet, so apparently fairly up to date.
Daydreaming and home/work has just got better.

(The AIS is rubbish by the way.)