他们想去海边玩英文怎么说

如果一个人想去海边玩，可以说："I want to go to the beach to have fun."

这句话的来源是英语中常用的表达方式，表示想去海边玩耍。

其他可能会用到的英文例句和中文翻译如下：

"We're going to the beach for a day of relaxation."（我们要去海边放松一天。）
"The beach is the perfect place to spend the weekend."（海边是度过周末的完美地方。）
"I can't wait to go swimming at the beach."（我迫不及待想去海边游泳。）
"The beach is my favorite place to go in the summer."（海边是我夏天最喜欢去的地方。）