Anladığım kadarıyla kamara seyir süresince açık.

It means as far as I understand, from what I understand, or as I understand it.

It is a very common Turkish phrase used when the speaker wants to show that they are giving their understanding of the situation, not stating something with complete certainty.

So in this sentence, the speaker is basically saying:

From what I understand, the cabin is open during the voyage.

Anladığım comes from the verb anlamak meaning to understand.

It breaks down like this:

• anla- = the verb stem
• -dık / -dik / -duk / -dük = a verbal noun / participle suffix
• -ım / -im / -um / -üm = my

Because of sound changes and vowel harmony, anla + dık + ım becomes anladığım.

In this kind of structure, anladığım means something like:

• what I understand
• what I have understood
• my understanding

So anladığım kadarıyla is literally close to to the extent of what I understand.

In this phrase, kadarıyla helps create the meaning as far as or according to the extent that.

A rough breakdown is:

• kadar = as much as / as far as / the extent of
• -ı = a possessive-like ending
• -yla = a shortened form of ile, meaning with / by

You do not need to analyze it every time you see it, though. The important thing is that X kadarıyla is a very common pattern meaning:

• as far as X goes
• according to X
• to the extent that X indicates

So anladığım kadarıyla is best learned as a chunk.

It sounds completely natural and common. It works in both spoken and written Turkish.

It is slightly more careful and nuanced than making a direct statement. Compare:

• Kamara seyir süresince açık. = The cabin is open during the voyage.
• Anladığım kadarıyla kamara seyir süresince açık. = From what I understand, the cabin is open during the voyage.

The second version shows that the speaker is relying on information they have, rather than speaking with total authority.

Kamara means cabin, especially a cabin on a ship, boat, or similar vehicle.

That is why it fits well with seyir süresince in this sentence. The context sounds maritime or travel-related.

Be careful not to confuse it with kamera, which means camera.

Seyir süresince means during the voyage, throughout the journey, or for the duration of travel/navigation.

It is made of:

• seyir = voyage, navigation, travel, sailing
• süre = duration, length of time
• süresince = throughout its duration / during

So:

• seyir süresince = during the voyage
• more literally: throughout the duration of the voyage

This is a fairly standard and natural way to express during the trip/journey.

Yes, very often you could.

• seyir süresince = during the voyage / for the duration of the voyage
• seyir boyunca = throughout the voyage

The difference is small. Süresince focuses a bit more on the time span or duration, while boyunca means throughout and is often a little more straightforward for learners.

So these are both natural:

• Kamara seyir süresince açık.
• Kamara seyir boyunca açık.

Because Turkish often leaves out the present-tense form of to be in third-person sentences.

So:

• kamara açık = the cabin is open
• kapı kapalı = the door is closed
• hava güzel = the weather is nice

In the same way, kamara seyir süresince açık means the cabin is open during the voyage.

If you want a more formal or emphatic version, Turkish can use -dır:

• Kamara seyir süresince açıktır.

That sounds more formal or official.

No. Açık is an adjective meaning open.

In this sentence, it functions as the predicate:

• kamara = the cabin
• seyir süresince = during the voyage
• açık = open

So the structure is basically:

[subject] + [time expression] + [adjective predicate]

This is very common in Turkish.

Turkish usually places the main predicate at the end of the sentence. Since açık is the predicate here, final position is the most natural place for it.

So:

• Anladığım kadarıyla kamara seyir süresince açık.

sounds natural because the sentence builds up to the main statement.

Turkish word order is flexible, but the final position often carries the main information.

Turkish has no direct equivalent of English a/an and the in many sentences, so context decides.

Here, kamara could in theory mean either the cabin or a cabin, but in normal context it will usually be understood as the cabin, because the speaker probably has a specific cabin in mind.

That is very normal in Turkish. Definiteness is often left to context instead of being marked with an article.

In this sentence, it most naturally describes a temporary or situational fact:

The cabin is open during the voyage.

That does not mean the cabin is always open in general. It means that during the relevant voyage or travel period, it is open.

Turkish often uses this simple adjective structure for both general truths and temporary states, and the time phrase seyir süresince tells you this one is situational.

They are similar, but not identical.

• Anladığım kadarıyla = as far as I understand / from what I understand
• Anladığıma göre = according to what I understand / based on what I understand

Both can work in similar contexts, but anladığım kadarıyla often sounds a bit softer and more like this is the extent of my understanding.

So in many situations, they are close enough, but anladığım kadarıyla is the more exact match for as far as I understand.