It's from Brazil, and you can find it in these songbooks:
Sing Together (1973 Girl Scouts of the USA)
Canciones de Nuestra Cabaña (1963 & 1980; World Association of Girl Guides and Girl Scouts, available through your local Scout/Guide store or catalog)
Sing (American Camping Association)
Still Singing (songbook of the 85th singalong in Washington DC, Girl Scouts of the Nations Capitol, USA)

SUITORS (O LÊ LÊ O BAHIA)

There are suitors at my door, O lê lê O Bahia
Six or eight or even more, O lê lê O Bahia
And my father wants me wed, O lê lê O Bahia
Or at least that's what he said. O lê lê O Bahia

CHORUS
O le o lo; O lê lê O Bahia
O le o lo; O lê lê O Bahia
O le o lo; O lê lê O Bahia
O le o lo.

And I told him that I will, O lê lê O Bahia
When the rivers run up hill, O lê lê O Bahia
And the fish fly, O lê lê O Bahia
Or the day before I die. O lê lê O Bahia CHORUS

And my father said to me, O lê lê O Bahia
You will marry and you'll see, O lê lê O Bahia
Your dreams will all come true O lê lê O Bahia
In a paradise or two. O lê lê O Bahia CHORUS

--- from SING (ACA)---- tr Charles and Clea Dubs; English verse 2 Katherine Cartwright, 1 & 3 by A. D. Z.
Sent to me from Bahiá,
Basketful of good cajá,
With a note, et cetera,
Will you marry me?

Then I told him that I will....

Then I told him that I may,
"Oh, but not for many a day,
To Bahiá I'd better go,
To be starting my trousseau.

----CLAP RHYTHM---
2: Right hand pat left thigh
3: Right hand pat left forearm
4: Clap hands
5: Left hand pat left thigh
6: Left hand pat right thigh
7: Left hand pat right forearm
8: Clap hands

------- extra verse---
So I left the very next day , O-lj-lj-o bahia
For at home I could not stay, O-lj-lj-o bahia
And with help from him above, O-lj-lj-o bahia
I will find the one I love, O-lj-lj-o bahia

Now the rivers run uphill, Oh-oh-lay-oh-bah-de-ah,
Doesn't that give you a thrill, Oh-oh-lay-oh-bah-de-ah,
Flying fish are known to fly, Oh-oh-lay-oh-bah-de-ah,
And tomorrow I must die, Oh-oh-lay-oh-bah-de-ah.

---ANOTHER VERSION -----
There are suitors at my door, oh a lay ah pah kee yah,
Six or eight or even more, oh a lay ah pah kee yah,
And my father wants me wed, oh a lay ah pah kee yah,
Or at least that's what he said, oh a lay ah pah kee yah.

Chorus (slap knees, clap hands):
Oh lay oh la, oh a lay ah pah kee yah,
Oh lay oh la, oh a lay ah pah kee yah.
Oh lay oh la, oh a lay ah pah kee yah,
Oh lay oh la, oh a lay ah pah kee yah.

And I said I never will, oh a lay ah pah kee yah,
Till the rivers run uphill, oh a lay ah pah kee yah,
And the fish begin to fly, oh a lay ah pah kee yah,
And the day before I die, oh a lay ah pah kee yah.

Chorus

And my mother said to me, oh a lay ah pah kee yah,
You will marry, you will see, oh a lay ah pah kee yah,
And your dreams will all come true, oh a lay ah pah kee yah,
In a paradise for two, oh a lay ah pah kee yah.

Chorus

And the rivers ran uphill, oh a lay ah pah kee yah,
And the fish began to fly, oh a lay ah pah kee yah,
And the day before I died, oh a lay ah pah kee yah,
I became a blushing bride, oh a lay ah pah kee yah.

Chorus
^^