This brings back so many memories my nanny always used to sing

Early in the morning as the day is dawning
See the little engines all in a row
See the little driver
Pull the little leaver
Choo choo choo
And away we go
Down by the sea
Where the watermelons grow
But too my home

I dare not go
For if i do
My wife will say
Have you ever seen a cow
With a green eyebrow
Down by the sea

My nanny was welsh and she used to sing it in welsh afterwards and we loved it as kids, just wish i could remember it in Welsh i sing the above version