There are many student societies you can join according to your interests or culture/nationality. There is a full-time Students' Union Sabbatical Officer, nominated by students whose role is to promote the interests and support all international students on campus. Find out more about Swansea University Sudents' Union and what they offer here.
There are various parks with tennis/basketball courts dotted around Swansea that you can use for free such as Victoria Park (Brynmill, near the seafront) and Cwmdonkin Park (Uplands).
You can meet local people and families in the community through English Corner (free to join and participate). This is an organisation run by volunteers from the local community and is a good way to meet people and learn about local customs and cultures. EYST (Ethnic Youth Support Team) is a holistic youth support service offering free support and activities for ethnic males and females under 25 years old. Both run regular trips to other parts of the UK.
Volunteering is a great way of getting training and meeting different people in the community. Students can volunteer in different projects around Swansea through Discovery in the Students’ Union. Find out more from the Discovery Office (ground floor Fulton House).