我很喜欢户外活动，比如，滑雪，冲浪，跑马拉松。

Wǒ hěn xǐhuān hùwài huódòng, bǐrú, huáxuě, chōnglàng, pǎo mǎlāsōng.

I really like outdoor activities, for example: skiing, surfing, and marathon running.

我很喜欢户外活动，因为有些户外活动让我觉得很放松。

Wǒ hěn xǐhuān hùwài huódòng, yīnwèi yǒuxiē hùwài huódòng ràng wǒ juéde hěn fàngsōng.

I really like outdoor events, because some of them make me feel really relaxed.