Here are Shengsi Island Pictures on flickr.
http://www.flickr.com/photos/jianshuo/tags/shengsi/
Here are some hightlights:
Volleyball on the Beach

Lunch in village.

Kijiji logo on sand

Sea

Near the sea:

Road on island:

P.S. This post was posted on April 28. Changed date to make up the absence of entry after the trip.
Is there a car ferry to Shengsi Islands?