にはたくさん

there are many … in

→ に
phrase Uncommon #17,748
there are many … in Used after a place or person to say that they have or contain many of something; the thing being counted typically follows たくさん.
JA: この町にはたくさん公園があります。
EN: There are lots of parks in this town.

日本にはたくさんムスリムの方がいます。

There are many Muslims in Japan.

その山にはたくさんサルがいる。

There are many monkeys on that mountain.

ホワイト氏にはたくさん友達がいるようです。

Mr. White seems to have a lot of friends.

ダムにはたくさん水があるの?

Is there a lot of water in the dam?

この辺りにはたくさんオオカミがいるんだ。

There are a lot of wolves around here.

ボブの部屋にはたくさん本がある。

There are a lot of books in Bob's room.