My special place in nature

I swam slowly like a cloud,
In the middle of the crowd,
Where everyone is having fun,
Under the hot sun.
The smell of the air,
Helps my soul to repair,
And the rhythm of the ocean,
Needs to get a promotion.
Swoosh comes down the wave
To the very little cave.
Boom, it smashes into the rocks,
Scaring the flock.