The Red Cat brewery, Winchester is holding another open day on the above date.

Red Cat is Winchester's newest brewery, and there's a chance to meet the brewers and drink some beer from 11:00 to 17:00.
Brewery address: Unit 10 Sun Valley Business Park, Winnall Close, Winchester, SO23 0LB
Their website: https://www.redcatbrewing.co.uk/tours-and-events
Facebook: https://www.facebook.com/events/2447357338831174/

To get there from Alton, you can...
EITHER get the 64 to Winchester bus station and then get the no 1 bus to Tesco's at Winnal - get off at "Winnal Close" (near to the PO Sorting Office) and walk right down to the end of Winnal Close road/industrial area - 'Red Cat' are over in the far corner.
OR get off the 64 at the Golden Lion (top of the hill at Winnal Manor Road), and walk - only 15mins.
** NOTE **
I have been caught out by no 1 buses not running back from Tesco's, and have found out that the last bus on any day from Tesco's is at 1516!
So after then, I suggest you walk back either to Imber Road/Shephard's Road and get the bus from there, or right back to the Golden Lion and catch the 64 back from there..