Cảnh này rất đẹp.

In this sentence, cảnh most naturally means scene, view, or scenery, depending on context.

A few common uses of cảnh:

• a visual scene in front of you
• a scene in a movie or play
• sometimes a situation or circumstance

So in Cảnh này rất đẹp, it most likely refers to the scene or view being looked at.

Because Vietnamese demonstratives usually come after the noun.

So:

• cảnh này = this scene
• cảnh đó = that scene
• cảnh kia = that scene over there

This is the opposite of English word order.
English: this scene
Vietnamese: scene this

Vietnamese often does not use a verb like to be before adjectives.

So:

• Cảnh này rất đẹp literally looks like This scene very beautiful
• but it naturally means This scene is very beautiful

This is completely normal Vietnamese grammar.

A useful contrast:

• là is often used when linking one noun to another: Anh ấy là bác sĩ = He is a doctor
• but before adjectives like đẹp, Vietnamese usually does not use là

So Cảnh này là rất đẹp would sound unnatural.

Rất means very.

It usually goes before the adjective:

• rất đẹp = very beautiful
• rất tốt = very good
• rất khó = very difficult

So the pattern here is:

• cảnh này = this scene
• rất đẹp = very beautiful

Without rất, the sentence becomes:

• Cảnh này đẹp = This scene is beautiful

The structure is:

• cảnh = noun
• này = demonstrative
• rất = degree word
• đẹp = adjective

So the pattern is:

noun + demonstrative + degree word + adjective

In this case:

• cảnh này = this scene
• rất đẹp = very beautiful

A natural English-style breakdown would be:

• This scene
  • is very beautiful

No. Cảnh này is perfectly normal without a classifier.

Vietnamese classifiers are common, but they are not required with every noun in every sentence. With cảnh, saying cảnh này is natural and standard.

You may sometimes hear cái cảnh này, but that can sound more colloquial, more emphatic, or slightly more emotionally colored depending on context. For a straightforward sentence, cảnh này is the normal choice.

A rough guide:

• cảnh: starts with a hard c/k sound, ends with -nh; the tone is the hỏi tone
• này: starts with n, and the tone is huyền
• rất: ends sharply with -t; the tone is sắc
• đẹp: starts with đ like an English d, ends sharply with -p; the tone is nặng

A few pronunciation notes:

• đ is a plain d sound
• final -t and -p are unreleased and short
• nh is a single Vietnamese sound, not an English n + h

If you are a beginner, it is better to learn each syllable with audio than rely too much on English-style spelling.

No. Đẹp is a very general adjective meaning beautiful, pretty, or nice-looking.

It can describe:

• scenery: cảnh đẹp
• a house: nhà đẹp
• clothes: áo đẹp
• handwriting: chữ đẹp
• a person: cô ấy đẹp

For people, Vietnamese also has more specific words in some contexts, such as:

• xinh = pretty, cute
• đẹp trai = handsome

But đẹp itself is very common and flexible.

Yes. Cảnh is broader than just natural scenery.

Depending on context, it can mean:

• a visual scene
• a shot or scene in a film
• a setting
• sometimes a situation

So Cảnh này rất đẹp could mean:

• This view is very beautiful
• This scene is very beautiful
• even This shot is very beautiful, if you are talking about a film or photo

If you want to be more specific about scenery or landscape, Vietnamese may also use:

• phong cảnh = scenery, landscape
• khung cảnh = scene, setting

Yes, Cảnh này rất đẹp is natural and correct.

That said, in conversation, people might also say:

• Cảnh này đẹp quá! = This scene is so beautiful!
• Khung cảnh này rất đẹp. = This setting is very beautiful.
• Phong cảnh này đẹp thật. = This scenery is really beautiful.

So your sentence is a good, standard way to say it, but Vietnamese has several natural alternatives depending on tone and context.