I think sumer is the best travelling season because we can use the feash air to go to travelling and the summer also we can go to travelling to go to swimming.
Autumn would be my favourite travelling season as the weather is neither too hot nor cold. More, lots of beautiful scenes can be enjoyed during the autumn, like the reddishness of the maple leaves.
i think summer is the best travelling season because there will be long vacation in summer, and it is too stuffy here in hong kong, i would like to travel somewhere which has a more pleasant weather and enjoy my summer break.