The council haven’t build the pump track yet, but it has gone into planning permission stage with my recommended improvements apparently. This was originally scheduled for 2015, promised in 2018 and raised as a new idea, again, in 2022 so the council take longer than me to do these things.
I can offer you Southampton Bike Park which was running nicely today and there are 3 all weather tracks, so that rain does not stop play, as well as all the dirt tracks. This is jumps, stunts and a dual track. We also have Lordswood which can give a few hours of singletrack fun although it can be a touch muddy at times. Finally we have the 4X track which is almost up and running.
All of these are within about a mile of each other so easy to do them all in a day. I live about 500m from the Southampton Bike Park so you are welcome to park at mine and fettle your bike if required, just pm me first to make sure I am not doing other stuff.