This is a serious stretch of water.
The tides and river flow, with the underwater deltas make for some of the most interesting water on the South coast.
This needs some serious care in a big boat, but in a small one....
They dont call that the traps for nothing...
You need to be a Master.
Those pics were taken in 30 knot SW wind.
It may be possible to sort of cheat and drag your boat up over the shingle bar and into Keyhaven Harbour and then on to the Checkpoint.