kono kukakusaito wa kirei desu.

topic particle

Breakdown of kono kukakusaito wa kirei desu.

• です: to be
• この: this
• きれい: clean

Questions & Answers about kono kukakusaito wa kirei desu.

Why is は pronounced wa in this sentence?

When は is used as the topic particle, it is pronounced wa, not ha.

So in:

この 区画サイト は きれい です。

the は marks 区画サイト as the topic of the sentence: as for this区画サイト...

This is one of the first pronunciation exceptions learners meet in Japanese:

• は normally = ha as a regular syllable
• は as a particle = wa

The same kind of thing happens with a couple of other particles too, such as へ being pronounced e in many cases.

What does この mean here, and why does it come before the noun?

この is a demonstrative word meaning this.

It must be followed by a noun:

• この 区画サイト = this sectioned site / this campsite plot

This is different from これ, which means this by itself:

• これ = this
• この 区画サイト = this site

So:

• この cannot stand alone here
• it directly modifies the noun that follows it

A useful comparison:

• これ は きれい です。 = This is clean/pretty.
• この 区画サイト は きれい です。 = This site is clean/pretty.