In the 40s and 50s, most of the films were shot at the studios. The trend of outdoor shooting began from the 1954 film Taxi Driver. Recall the song "Jayen To Jayen Kahan" it was shot on a beach. This brought a more realistic approach to the picturization. The waves sticking the rocks, making a huge splash have been metaphorically used as an emotional explosion.
On the other hand, slow and peaceful waves, are shown to have calming influence.
A seashore song creates a completely different mood or expression. In the 60s the beach or the seashore made its appearance in romantic songs, picnic songs, for obvious reasons. There are many songs, where a family is enjoying happily and denotes the delightful moments of their life.
One of the earliest songs, shot by the seashore. Of course, only long shots and the sea waves are in the song, that is shot on an outdoor location. The close-ups of the actor, Nisar Khan, must have been shot indoors. The conflict and the deep anguish of the character are shown very effectively with the waves hitting the rocks. The orchestration during these scenes also intensifies the tension in the song."Roun Mein Sagar Ke Kinare by C H Atma
The tidal waves crashing on the rocks, scattering the water droplets is a delightful sight to watch. Recall the song "Sach Hue Sapne Tere" from Kala Bazar here Dev Anand in a sad mood sitting on the rock while Waheeda, in a simple saree, without any jewelry at all, with a simple hairdo trying to please Dev, as she does ‘chiki chiki chik chak’. Her encouraging gestures finally appear to work for him, who finally smiles at her.