La naviera indica la hora límite de embarque.

No. La naviera usually means the shipping company / ferry company / carrier, not the physical ship itself.

In transport contexts, naviera refers to the company that operates the vessel or service. If you wanted to talk about the ship, you would normally say el barco, el buque, or el ferry, depending on the context.

So in this sentence, la naviera indica... means that the company is the one stating or giving this information.

Because naviera here refers to the company, and company names or company nouns of this type are often feminine in Spanish.

Compare:

• la compañía
• la empresa
• la aerolínea
• la naviera

Naviero/naviera can also refer to a person involved in shipowning or shipping, but in this sentence la naviera is the standard way to mean the shipping line/company.

Indica is the third-person singular present tense of indicar.

• indico = I indicate
• indicas = you indicate
• indica = he/she/it indicates

Here it means the company indicates / states / gives.

Spanish often uses the present tense for:

• general facts
• standard procedures
• information shown on websites, tickets, notices, etc.

So La naviera indica la hora límite de embarque sounds like a normal factual statement: The company states the boarding cut-off time.

In la hora límite, límite works like a qualifier meaning limit / cut-off / deadline.

This is a common Spanish pattern where a noun is followed by another noun that defines it, especially in fixed expressions such as:

• fecha límite = deadline
• edad límite = age limit
• hora límite = cut-off time / deadline time

So hora límite is not literally just limit hour in a clumsy way; it is a normal set expression meaning the latest allowed time for something.

Because hora límite is the natural fixed expression in Spanish.

Spanish generally does not build this kind of phrase by putting the qualifier first the way English sometimes can. English often uses noun + noun combinations very freely, like boarding time or deadline date, but Spanish usually has more fixed patterns.

So:

• hora límite = correct
• límite hora = not natural

This is something you mostly learn as a chunk.

De embarque means for boarding or of boarding, depending on how literally you want to analyse it.

• embarque = boarding / embarkation
• de embarque = relating to boarding

So la hora límite de embarque is the time limit connected with boarding: in natural English, the boarding cut-off time or the latest boarding time.

Both can be understandable in some contexts, but de embarque is the more standard and compact way to label this kind of thing.

Spanish often uses de + noun to classify or define another noun:

• tarjeta de embarque = boarding pass
• puerta de embarque = boarding gate
• hora de salida = departure time

So hora límite de embarque fits that same pattern very naturally.

Para embarcar would sound more explanatory, more like time in order to board, rather than the standard term.

Because embarque is being used in a general, classificatory way, not to refer to one specific boarding event as a separate noun phrase.

Compare:

• la hora límite de embarque = the boarding cut-off time
• la hora del embarque = the time of the boarding

With de + noun, Spanish often leaves out the article when the noun is describing the type or function:

• tarjeta de crédito
• sala de espera
• puerta de embarque

So de embarque here means for boarding / boarding-related, not of the boarding.

Yes, very much so, especially in travel contexts.

Common examples:

• tarjeta de embarque = boarding pass
• puerta de embarque = boarding gate
• hora de embarque = boarding time

In Spain, embarque is standard in transport and travel language, especially with ferries, ships, and also air travel.

Yes. The best English translation depends on context.

Indicar can mean:

• to indicate
• to state
• to show
• to give information

So in a practical context, this sentence could be rendered naturally as:

• The ferry company indicates the boarding cut-off time.
• The carrier states the latest boarding time.
• The company gives the boarding deadline.

The Spanish is slightly formal/informational, which is typical for notices, booking pages, and travel conditions.

Good question. Some feminine singular nouns that begin with a stressed a- sound take el in the singular, for example:

• el agua
• el águila

But hora does not do that, because it does not begin with a stressed a sound. It begins with a silent h, and the first pronounced vowel is o:

• hora = o-ra

So it stays:

• la hora

It can work as a full normal sentence, but it also has the slightly formal, compact feel of travel or administrative language.

It sounds like something you might read:

• on a booking website
• in travel conditions
• in ferry information
• in a customer notice

In everyday conversation, someone might say something a bit more expanded, such as:

• La naviera te indica hasta qué hora puedes embarcar.
• La naviera especifica la hora límite para embarcar.

But the original sentence is completely natural in an informational context.