How do you say

Last week, my friend and I went hiking in the mountains and it was really relaxing.

..in Chinese?

上周我和朋友一起去爬山,感觉非常放松。

shàng zhōu wǒ hé péng yǒu yì qǐ qù pá shān , gǎn jué fēi cháng fàng sōng 。

How do you say "I’m going to have Korean barbecue in a month." in Chinese?