..and then as well as that there's swimming, of course. 这句中的that是什么用法?

问题描述:

..and then as well as that there's swimming, of course. 这句中的that是什么用法?
We do have a keep-fit studio, which is very popular with members, and then as well as that there's swimming, of course. 请问这句话中的that是什么用法?是引导词吗?

引导词,引导宾语从句这个宾语从句是由哪个谓语动词发出来的?谢谢