Artemidorus Meanings:

To walk along the sea in the dream, then this means that somebody wants to go on a journey. The sea is like a gentleman because of his power, because of the wetness of a woman.

There is a young man along the sea, then in his real life he’ll fall in love with a courtesan. Because the sea and the courtesan is comparable, because first she gives a pleasant idea, but then the most evil.