Learn Hardcore Portuguese (Brazil): Vamos explorar a trilha?

Breakdown of Vamos explorar a trilha?

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What does vamos mean here?

Vamos is the 1st person plural form of ir (to go): we go / we are going.

But in this sentence, vamos + infinitive (explorar) is being used in a very common way to mean something like:

So Vamos explorar a trilha? can sound like a suggestion or invitation: Shall we explore the trail?

Why is there no nós in the sentence?

Portuguese often drops subject pronouns when the verb already makes the subject clear.

Because vamos already tells you the subject is we, nós is usually unnecessary.

Including nós is possible, but it often sounds more emphatic:

Nós vamos explorar a trilha? = Are we the ones going to explore the trail?

Does vamos explorar literally mean we go to explore?