1.The tour can help us to have a taste of the nature beauty ,breathes fresh air,can make the good friend to many
2.But the weather is changeful ,may get wet in the rain sometimes to catch cold.When touring ought to prepare to know weather condition sufficiently.
3.I think that teen-agers does not ought to tour alone,because of this is very dangerous ,we have no way to finish protecting self ,ought to travel in a group with many schoolmates at least ,cast light on protect conveniently each other.