"From dawn to noon on the sea" or "From dawn to midday on the sea" – very slow – animate little by little (B minor)
"Play of the Waves" – allegro (with a very versatile rhythm) – animated (C sharp minor)
"Dialogue of the wind and the sea" or "Dialogue between wind and waves" – animated and tumultuous – give up very slightly (C sharp minor)
Debussy's intent is not at all to meditate on humans and their relationship with the sea, but on the sea itself. Like a lot of Debussy, the work is haunting and evocative, sweeping the listener along on a series of orchestral "images".
Here is La mer.