Advantage;1.You can take a good rest both in your body and your mind.
2.Broaden your horizon.For example, you can visit a lot of scenic spots in different places and you can know their history and culture.Disanvantage:1.You can not visit a lot of places thoroughlybecause usually these places are very crowded in holiday seasons.
2.In some places, a lot of valuable placesare badly damaged because travellers do not notice their behaviors. Hope my thouhts will be helpful for your composition!