Four lady friends are staying in Salisbury and want to see Stonehenge, Avebury, and Salisbury Cathedral/Magna Carta in one day. Is there a guided tour that covers all of these with ticket entrance fees, or should we find transportation on our own and do self guided tours of each of these places?
Love all of those places! I know of Stonehenge/Avebury tours that leave from London, and a quick google makes me think you might be able to find a tour for both standing stones locations, but you would perhaps need to pay to customize to add on the cathedral. My biggest advice would be to check the opening hours on the day you want to go. We did Avebury in the dead of winter, and it closed early that day due to limited daylight.
Stonehenge to Avebury is going to be close to an hour drive. Honestly, I significantly prefer Avebury and feel as you can really spend a lot of time there. Do all 3 attractions really need to be in one day?