Clue 1
A ripple, a slosh, an ebb and a flow
Tell you which is the best way to go.
The clue's in the quay, which opens the gate
Where many a vessel has had to wait.
Although there are many, take a good look around,
As gates are closed, appears the ground.
From there you can see the end is in sight,
But first you must find, the pathway that's right.
