This is the chorus of a song written by John A Glover-Kind in 1907 and popularised by Mark Sheridan, who recorded it in 1909. I’ve made a small change to verse 2, line 3 to make it more in keeping with very young children.
Oh, I do like to be beside the seaside!
I do like to be beside the sea!
I do like to stroll along the prom, prom, prom,
Where the brass band plays tiddly-om-pom-pom!
So just let me be beside the seaside.
I’ll be beside myself with glee.
And there are boys and girls beside,
I would like to be beside,
Beside the seaside, beside the sea.