Here is a map and a photo of the launching area for the deep water channel at fleetwood - if you reach the lighthouse you've gone too far.
You can park either on the prom at the top edge of the red circle or if these spaces are full you can park in the car park next to the law court
shown at the bottom edge of the red circle - you can just see that there is a grassy area at the side of the car park to rig up on (adjacent to the hotel)
but you will have to cross the main road with rig in hand if you do this.
To launch you walk to the edge of the channel which is not much lower than the picture at high tide as it shelves quite steeply at the corner
this looks darker on the picture as does the course of the channel