what will you do in this summer vacation?

what would you like to do in such a hot summer ,maybe you will swimming .maybe you will play game on the computer ,to me , I prefer swimming ,but the ticket is expensive ,and I cann't swimming every day .

I remember the time when we were kids,we often swimming at the river behind my house,.

when I am kids ,the river is much cleanner than it's now,and  the chirdren in a villige is always swimming together in a river everyday in summer .but these years the river is becomming dirty and dirty ,so we cann't swimming in the river,we can just swimming in a pool.what a pity !when can we swimming in the river again?will th e river be clean again?