-- Last Updated: Dec-23-12 6:01 PM EST --
Stable enough to climb into from a boat, can easily carry 50 lbs in the rear, very seaworthy, can be used in big surf. 9 ft long, not really heavy.
Here's a video of a beginner surfing one. I own several kayaks but keep this one around, it's pretty useful and forgiving especially for new paddlers.