Güneşin doğuşunu parkta izlemek çok keyifli.

It has two main parts:

Güneşin doğuşunu parkta izlemek = the whole subject of the sentence
çok keyifli = the predicate describing that subject

So the structure is basically:

[Watching the sun rise in the park] [is very enjoyable]

A very natural Turkish pattern is to use an infinitive phrase as the subject, much like English Watching ... is enjoyable.

Güneşin is güneş + -in, the genitive ending.

Here it means of the sun or the sun’s.

Turkish often uses a genitive + possessed noun structure where English might use the sun’s ... or ... of the sun:

güneşin doğuşu = the sun’s rising / the sunrise

So güneşin is there because doğuşu belongs to or is associated with the sun.

Because several pieces are stacked onto the word:

• doğ- = rise, be born
• -uş = a noun-forming suffix, giving doğuş = rising, emergence
• -u = 3rd person possessive ending
• -nu = accusative ending added after a possessed form, with a buffer n

So:

doğuş → doğuşu → doğuşunu

In this sentence, güneşin doğuşu is a noun phrase meaning the sun’s rising, and then that whole thing becomes the direct object of izlemek, so it takes the accusative: güneşin doğuşunu.

Because it is the specific direct object of izlemek.

In Turkish, direct objects are often marked with the accusative when they are definite/specific. Here, the sentence is talking about a specific event: the sun’s rising.

So:

• doğuşu = its rising / the sunrise
• doğuşunu = that rising, as the object being watched

This is one of the most important Turkish patterns for English speakers to get used to: specific object → accusative marking.

Because izlemek here is an infinitive, meaning to watch or watching.

Turkish uses the infinitive ending -mek / -mak to turn a verb into something noun-like. That lets the whole action function as the subject of the sentence.

So:

parkta izlemek = to watch in the park / watching in the park

And the whole phrase:

Güneşin doğuşunu parkta izlemek
means Watching the sun rise in the park

So this sentence is not saying I watch or we watch. It is talking about the activity itself.

Because in Turkish, the 3rd person present-tense copula is often left unspoken.

So:

çok keyifli
literally looks like very enjoyable, but it means
is very enjoyable

This is completely normal in Turkish.

Compare:

• Bu güzel. = This is beautiful.
• Film sıkıcı. = The movie is boring.
• Güneşin doğuşunu parkta izlemek çok keyifli. = Watching the sun rise in the park is very enjoyable.

Because parkta uses the locative ending, meaning in the park or at the park.

• parkta = in/at the park
• parka = to the park

So:

• parkta izlemek = to watch in the park
• parka gitmek = to go to the park

Also, the ending appears as -ta rather than -da because of consonant harmony:

park ends in the voiceless consonant k, so the locative becomes -ta.

Yes. Turkish word order is flexible.

You could also say:

Parkta güneşin doğuşunu izlemek çok keyifli.

That may even sound a bit more natural to many speakers.

Both versions are fine. The difference is mostly about focus or emphasis. Turkish often moves time/place expressions around depending on what the speaker wants to highlight.

But izlemek usually stays at the end of its own phrase, because Turkish tends to place the verb last.

Keyifli means enjoyable, pleasant, or delightful.

So çok keyifli means:

• very enjoyable
• very pleasant
• really nice, in the sense of giving pleasure

It is a warm, natural way to describe an experience that feels good.

It is not exactly the same as exciting.
It is closer to pleasant and enjoyable than to thrilling.

Yes, you could, and it would also be understandable and natural.

There is a small difference in feel:

• güneşin doğuşunu izlemek uses doğuş, a noun meaning rising or sunrise
• güneşin doğmasını izlemek uses a verbal-noun form meaning the act of rising

Both can work.
But doğuş often sounds a bit more like a set noun for the event, so it fits very nicely with sunrise-type expressions.

You may also meet the common noun:

gün doğumu = sunrise

Because Turkish does not have articles that work like English the and a.

Instead, Turkish shows ideas like specific vs non-specific in other ways, especially through:

• context
• word order
• accusative marking
• sometimes bir

In this sentence, the object is understood as specific partly because it has the accusative ending:

doğuşunu

So even without a word meaning the, the sentence clearly points to a specific event: the sun’s rising.

A very helpful way is to treat it as one unit:

güneşin doğuşunu = the sun’s rising / the sunrise

If you try to translate each part too literally every time, it can feel complicated. But as a learner, it is useful to recognize this common Turkish pattern:

[possessor in genitive] + [noun with possessive ending]

Examples:

• adamın arabası = the man’s car
• çocuğun adı = the child’s name
• güneşin doğuşu = the sun’s rising

Then, if that whole phrase becomes the object of a verb, Turkish adds the accusative:

• güneşin doğuşunu izlemek = to watch the sun’s rising

That is the key pattern behind this sentence.