In the episode "Blackwater" (S02EP09) of _Game of Thrones_, Bronn releases a single arrow and ignites the wildfire in the Blackwater Bay.

**Where was Bronn standing when he released the arrow?**

Was he on the shore near Mud Gate and did he shoot the arrow into Blackwater Bay or into Blackwater Rush? 

For that matter, where did the Lannister ship come from? Did it approach Stannis via the Blackwater Rush or did it set sail from Blackwater Bay and never enter the rush? 

Maybe this is described in the book?