This's what I'm used to call as "a technical film"... perfect to transform in practice the teorethical teaching of Ansel Adams or to create the mood of some Edward Weston images.
The sky was clean but with well defined clouds.
What I like very much in the scene was the waves cresped with spume.
I previsualized the image with a dramatic sky and with a bright high tones on the spume with the idea to draw some white line along the film. All had to be on focus and with a very small grain
To achieve these previsualized results I have used a circular polarizer filter with an orange filter to increase the contrast of clouds/sky. In order to maintain the details in the high tones and the acutance of the spume with the sea I also decided to develop the Ilford FP4 with PMK (pyro) in N 1 (to be sure to increase the high tones of the spume and the contrast with the low tones)
For the focus I've used the tilt of my Rollei SL66 in order to focus on the sea plan (Scheimpflug rule).
The exposition has been calculated taking the light measure with a spotmeter on the low lights (the shadow of the far waves) that I put in Zone 3 and then on the higher lights (the spume) that was in Zone 7 (pushed to zone 8 with N 1)