Lake

This is a traditional shape often used by canoe trippers and for all flatwater applications.  The broad tip has a lot of catch for the beginning of the stroke and the trim throat area lets the paddle get in close to the boat for the latter part of the stroke.  Some people even raft with this shape although the corners on the tips tend to wear faster than rounder shapes.  Be sure to say if this is for a flatrwater application and I can keep the blade thickness trimmed down for optimal swing weight.