How to say “Every summer there's some guy showing off on a jet ski right where the kids are swimming.” in Japanese

In Japanese

毎年夏(まいとしなつ)になると、子(こ)どもが泳(およ)いでるすぐそばで水上(すいじょう)バイクの技(わざ)を見(み)せびらかすやつがいるんだよね。

Maitoshi natsu ni naru to, kodomo ga oyoideru sugu soba de suijō baiku no waza o misebirakasu yatsu ga iru n da yo ne.