あの 【かわ】 は とても きれいです。

Translation: That river is very clean/beautiful. - かわ (kawa) means 'river' and is written in Kanji as 川. - Other choices: - 山 (やま / yama) means 'mountain'. - 海 (うみ / umi) means 'sea' or 'ocean'. - 池 (いけ / ike) means 'pond'.