will be there for only 1 day, need info on local bus's to Stonehenge, price, times? Would like to avoid tours
There is no bus from Southampton. There is a bus from Salisbury, which is the nearest town, 14 Km from Stonehenge. It runs once an hour, details here: http://www.thestonehengetour.info/timetable
You would need to first get a train from Southampton to Salisbury.
From all of the other threads you've posted it looks like you're asking for DIY port excursions. You might want to read Rick's Cruise guidebook first, and then ask specific port questions on the Cruise Critic Ports of Call forum.
You take a train from Southampton to Salisbury. Then take the shuttle bus to Stonehenge. On returning to Salisbury, go and see the wonderful medieval cathedral. Purchase a return (pay on the day) ticket SOU > SAL. www.nationalrail.co.uk