La visita guiada empieza aquí.

Because visita is a feminine singular noun in Spanish, so it takes the feminine singular article la.

• la visita = the visit / the tour
• el is used with masculine singular nouns, so it would be wrong here

A good habit is to learn nouns together with their article:

• la visita
• el museo
• la guía

Because guiada has to agree with visita, which is feminine singular.

In Spanish, adjectives usually agree in gender and number with the noun they describe:

• visita guiada = feminine singular
• tour guiado would be masculine singular if the noun were masculine
• visitas guiadas = feminine plural

Here, guiada means guided.

Visita guiada is a very common expression meaning guided tour or guided visit.

Word by word:

• visita = visit
• guiada = guided

Even though visita often means visit, in many real-life contexts such as museums, historical sites, and tourist attractions, visita guiada is naturally understood as a guided tour.

Because in Spanish, adjectives often come after the noun.

So:

• visita guiada not usually
• guiada visita

English often puts adjectives before nouns, but Spanish usually puts them after:

• casa grande = big house
• libro interesante = interesting book
• visita guiada = guided tour

There are exceptions, but this sentence follows the normal Spanish pattern.

Because the subject is la visita guiada, which is third person singular, and the sentence is in the present tense.

The infinitive is empezar = to begin / to start.

Its present-tense forms include:

• yo empiezo
• tú empiezas
• él/ella/usted empieza

Since la visita guiada is singular, Spanish uses empieza.

Yes. It is a stem-changing verb.

In the present tense, the e in the stem changes to ie in most forms:

• empiezo
• empiezas
• empieza
• empezamos
• empiezan

So empieza is the correct present-tense form here.

This kind of change is very common in Spanish:

• pensar → piensa
• querer → quiere
• cerrar → cierra

Because Spanish usually does not need subject pronouns when the subject is already clear.

Here, the subject is explicitly stated:

• La visita guiada = the guided tour

So adding ella would be unnecessary.

Spanish often leaves out pronouns unless they are needed for:

• emphasis
• contrast
• clarity

For example:

• Empieza aquí = It starts here / The tour starts here
  If the context is clear, Spanish can even omit the noun phrase too.

Yes. Comienza and empieza both work here.

• empieza = starts / begins
• comienza = begins / starts

In many situations, they are interchangeable.
A small nuance is that comenzar can sound a little more formal or polished, while empezar is extremely common in everyday speech.

In Latin America, empieza is very natural and common.

Both can mean here, and both are common in Latin American Spanish.

A useful general idea is:

• aquí often sounds a bit more specific or exact
• acá can sometimes feel a bit broader or more spatial

But in real life, the difference is often small, and usage depends a lot on region.

So these can both sound natural:

• La visita guiada empieza aquí.
• La visita guiada empieza acá.

The version with aquí is completely standard.

Yes, absolutely.

Both are correct:

• La visita guiada empieza aquí.
• Aquí empieza la visita guiada.

The difference is mostly about focus or style:

• La visita guiada empieza aquí sounds neutral and straightforward
• Aquí empieza la visita guiada puts more emphasis on here

Spanish word order is more flexible than English, especially when you want to highlight a certain part of the sentence.

Because aquí is stressed on the last syllable, and Spanish spelling rules require the written accent there.

It is pronounced roughly like:

• ah-KEE

The accent mark tells you where the stress goes:

• a-quí

Without the accent, the spelling would not be correct.

A natural Latin American pronunciation would be approximately:

la bee-SEE-ta ghee-AH-da em-PEE-sa ah-KEE

A few notes:

• v in visita is usually pronounced much like a soft b sound in Spanish
• guiada: the u is silent here, so it sounds like ghee-AH-da
• empieza: stress on pie
• aquí: stress on the last syllable

A more pronunciation-based breakdown:

• La visita
• guiada
• empieza aquí

If said naturally, the words flow together smoothly:

• La visita guiada empieza aquí

Yes. Visita can mean visit in general, depending on context.

For example:

• La visita fue corta = The visit was short
• Tenemos una visita mañana = We have a visitor/visit tomorrow, depending on context

But when you say visita guiada, it very strongly suggests a guided tour or guided visit, especially in places like:

• museums
• historic buildings
• galleries
• tourist sites

So the phrase is very context-friendly and natural.