Help decipher the lyrics of the Zoomarine song

Hi, I’ve been trying to decipher the lyrics of the Zoomarine song for years and until now I’ve never managed to find anything coherent beyond the chorus. In the last few days I’ve been investigating the song more deeply (since it’s stuck in my head) but unfortunately there’s zero information about it on the net (which I find curious). I can only find the audio and a video that attributes the voice to Sérgio Neves, Tony Carreira, Zeca Afonso and Adriano Correia de Oliveira (???)however I’m pretty sure that’s not true lol, unless Tony Carreira is the harmonica. With this mp3 of vaguely better quality that I found on the Zoomarine website via the Wayback Machine, what I managed to hear was this (I must warn that most of it doesn’t make much sense, grammatically):

Everybody sing, together!

I swim in a beautiful sea (with you)

And I _______ [let’s go/must go?] Zoomarine

And there I can find all those _______ [ones/once ?] (for me)

And there we go back Zoomarine

Chorus:

Zoo zoo, I go to Zoomarine

Zoo zoo Zoomarine

Zoo zoo, I go to Zoomarine

Zoo zoo Zoomarine

[Instrumental]

[Refrão]

Can anyone help? Or even give any information about this song? It seems to have some fascinating lore.