Translation of "to swim" into Portuguese

I tried to swim out to the buoys, like when we were kids.

Eu tentava nadar até as bóias, como quando éramos crianças.

My head used to swim From the perfume I smelled

Minha cabeça flutuava no perfume que eu sentia

I know how to swim, i just don't like swimming in the river.

Eu sei nadar, mas não gosto de nadar no rio.