Whats the name of the park in southall with a play hut?

Mum used to take me there when i was younger about 15 years ago, but we dont live there anymore and i have no idea what its called.
So im listing 3 unique things about it and hopefully someone will be able to help me out:

Its got a cool playhut in the back where you used to be able to do painting, etc

There was a cool ''ride'' made of a rubber tyre that you sit on and it would swing forward really fast between 2 poles. The ride consisted of 2 poles widely spaced apart, with a long cable tied at both ends, between the poles. The tyre was suspended from a rope attached to thecable You would step onto a ramp which elevates you at the height of the rubber tyre, and once sat on the tyre you would need to move back with your legs to give yourself a ''push'' so you could move forward fast to the other end.

Finally, theres a series of tunnels near the hills, which are made of grey stone. They are shaped like castles, and they are not horizontal tunnels, but vertical.

Hi reading your question has bought back a whole load of memories! i moved from southall about 20 years ago and used to go to that park! i remeber is from my childhood and im sorry i cant remeber the name of it. you have decribed it so well i know exacly what your talking about. Southall has changed so much since i used to live there!

sould be going down this weekend! hope you find your answer if not i'l ask my cousins and post back up here.

:)