Prefiero hacer el recorrido con audioguía para entender mejor cada sala.

Because preferir is a stem-changing verb in the present tense. The e in the stem changes to ie in most present-tense forms:

• yo prefiero
• tú prefieres
• él/ella prefiere
• nosotros preferimos
• vosotros preferís
• ellos prefieren

So prefiero means I prefer.

After verbs like preferir, querer, necesitar, and decidir, Spanish often uses a second verb in the infinitive.

So:

• Prefiero hacer... = I prefer to do...
• Quiero comer = I want to eat
• Necesito salir = I need to leave

This is very normal Spanish structure:
conjugated verb + infinitive

Literally, hacer means to do/make, and recorrido means route, course, or tour/path through a place.

In this context, hacer el recorrido is a natural expression meaning something like:

• to do the tour
• to go through the route
• to follow the museum route/visit

In English, we would not usually say do the route in the same way, but in Spanish this is very idiomatic.

In a museum or exhibition, el recorrido usually means the path or tour through the different rooms or sections.

So it suggests:

• the order in which you move through the museum
• the full visit from one room to the next

It is slightly different from visita, which more directly means visit.
Recorrido focuses more on the route or progression through the space.

Both are possible, but con audioguía sounds very natural when talking about the method or service in a general way.

Compare:

• con audioguía = with an audio guide / using an audio guide
• con una audioguía = with an audio guide (a bit more concrete, as if referring to one specific device)

Spanish often drops the article when the noun is being used in a more general, functional sense, especially after con.

So in this sentence, con audioguía feels like: using the audio-guide option

It is feminine: la audioguía.

Examples:

• una audioguía
• la audioguía del museo

Even though it begins with audio-, the main noun is guía, which is feminine here.

After para when you express purpose, Spanish uses the infinitive.

So:

• para entender mejor cada sala = in order to understand each room better

This is the normal pattern:

• Estudio para aprender = I study in order to learn
• Voy al museo para ver la exposición = I’m going to the museum to see the exhibition

You do not use a conjugated verb like entiendo after para unless there is a full clause with a different subject, such as:

• para que yo entienda...
• para que entiendas...

But here the subject is the same person, so the infinitive is used: entender.

Here mejor means better.

So:

• entender mejor = to understand better

In Spanish, adverbs like mejor often come after the verb:

• hablar mejor = to speak better
• explicar mejor = to explain better
• entender mejor = to understand better

That word order is completely normal.

Cada sala means each room, focusing on the rooms one by one.

• cada sala = each room
• todas las salas = all the rooms

Both could work, but they are not exactly the same in tone:

• entender mejor cada sala sounds a bit more detailed and individual
• entender mejor todas las salas sounds more like the museum as a whole

Also, after cada, Spanish uses a singular noun:

• cada sala
• cada obra
• cada visitante

Not:

• cada salas

The accent mark shows the stress: au-dio-guí-a.

Without the accent, the pronunciation pattern would be less clear. The written accent helps show that the stress falls on guí.

In practice, you will hear it pronounced roughly like:

• ow-dyo-GHEE-ah

The accent is important in standard spelling: audioguía.

Yes. A few natural alternatives are:

• Prefiero hacer la visita con audioguía para entender mejor cada sala.
• Prefiero recorrer el museo con audioguía para entender mejor cada sala.
• Prefiero visitar el museo con audioguía para entender mejor cada sala.

The original sentence is perfectly natural, but these versions shift the emphasis slightly:

• hacer el recorrido = do/follow the route through the museum
• hacer la visita = do the visit/tour
• recorrer el museo = go around the museum
• visitar el museo = visit the museum

All are understandable and natural, though hacer el recorrido sounds especially good if there is a set path or guided route.

Yes, very much so.

Words like audioguía, sala, and recorrido strongly suggest a museum, gallery, exhibition, or similar cultural space.

• audioguía is very commonly used in museums in Spain
• sala often means room or gallery room
• recorrido fits the idea of moving through the exhibition in order

So this sounds like something a visitor might naturally say at a museum or art gallery.