把句子译成英文：旅游是一种非常好的活动。当你工作累了，有空的时候，到美丽的地方欣赏自然的美。

Travelling is really an perfect activities.
When you get tired of heavy work and have free time,you can go to a beautiful place to enjoy yourself

Travelling is a very good activity.When we get tired of our work or study ,you can go to a beautiful place to enjoy yourself.You can breath fresh air ,make friends ,and you will forget tired there and it's good for your health.travel sometimes also have some trouble .The weather changes a lot,and stolen money by thives is often happened. You should make full preparation for the travel.You should know the weather. If you travel with a friend ,you can taka care of each other,but you must be careful.I hope you will have a good trip. 给赞吧。码字不容易。原创。

其实很简单!
答案为:
The traveling is one kind of extremely good activity. When you workedtiredly, has emptied, to the beautiful place appreciates naturalAmerica.