Após a visita, vamos sair.

Após means after.

In Brazilian Portuguese, após is correct, but it sounds a bit more formal or written than some other options. In everyday speech, many people would more naturally say depois da visita.

So these are both correct:

• Após a visita, vamos sair.
• Depois da visita, vamos sair.

The first sounds slightly more formal; the second is often more conversational.

Portuguese often uses definite articles more often than English does.

Here, a visita means the visit. It refers to a specific visit that both speaker and listener know about.

So:

• visita = visit
• a visita = the visit

In English, you might sometimes leave out the in similar situations, but in Portuguese the article is very natural here.

Because após normally does not contract with the article a.

So:

• após + a visita → após a visita

This is different from other combinations in Portuguese, such as:

• depois de + a visita → depois da visita
• a + a → à

So após a visita is the normal form.

The comma separates the introductory time expression from the main clause.

• Após a visita = a time phrase
• vamos sair = the main statement

This comma is very natural and helps readability. It is especially common when a time phrase comes at the beginning of the sentence.

Without the comma, the sentence would still usually be understood, but the version with the comma is better style:

• Após a visita, vamos sair.

Because ir + infinitive is extremely common in Brazilian Portuguese for talking about the future.

So:

• vamos sair = we are going to go out / we will go out
• sairemos = we will go out

Both are correct, but vamos sair sounds more natural in everyday spoken Brazilian Portuguese.
Sairemos is more formal or literary in many contexts.

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

Here:

• vamos already means we go / we are going

So nós is optional:

• Após a visita, vamos sair.
• Após a visita, nós vamos sair.

Both are correct. The version without nós is very normal and natural.

Sair basically means to leave, to go out, or to head out.

In this sentence, the most natural English translation depends on context:

• we’re going out
• we’re leaving
• we’ll go out

If the speaker means going out for fun or going somewhere after the visit, go out is a good fit.
If the idea is simply leaving a place, then leave may fit better.

Yes, it can, depending on context and intonation.

Vamos + infinitive can sometimes be:

• a statement: we are going to go out
• a suggestion: let’s go out

So Após a visita, vamos sair could mean either:

• After the visit, we’re going out
• After the visit, let’s go out

Usually, context or tone of voice makes the intended meaning clear.

A simple pronunciation guide:

• após → roughly ah-POSS
  The stress is on the second syllable because of the accent: pós

• visita → roughly vee-ZEE-tah in Brazilian Portuguese
  Stress: zi

• vamos → roughly VAH-mus
  Stress: va

• sair → roughly sah-EER
  It has two syllables: sa-ir, with stress on ir

The written accent in após is important because it shows the stressed syllable.

In everyday Brazilian Portuguese, yes, Depois da visita, vamos sair often sounds more natural and conversational.

Compare them:

• Após a visita, vamos sair. → correct, slightly more formal
• Depois da visita, vamos sair. → correct, very common in speech

So if you are aiming for natural spoken Brazilian Portuguese, depois da visita is often the more usual choice.