Possible Clues:

• Journey that nonetheless could be made in the Square Mile
• Set off after several drinks and journey there and back
• Journey that gets you back home about fall
• Journey arranged by Tudor prince without backing of church
• Journey to somewhere and back again
• A fall after drinks in which one comes back eventually
• Point A to point B and back
• I'd run port differently for this kind of voyage
• Cycle tour?
• About to set off, journey there and back