How do you say

When the holiday comes, I plan to travel to Yunnan, and admire the beautiful sceneries of Cangshan and Erhai Lake.

..in Chinese?

假期来临时,我打算去云南旅游,欣赏苍山洱海的美丽风光。

jià qī lái lín shí , wǒ dǎ suàn qù yún nán lǚ yóu , xīn shǎng cāng shān ěr hǎi de měi lì fēng guāng 。

How do you say "Our school is to hold an English Speech Contest, aiming to improve students’ ability of oral expression." in Chinese?