We decided to walk from the Uffizi to the Boboli Gardens. This was an unplanned trip, so I hadn't checked directions ahead of time or saved them in my phone. We just tapped in "Boboli Gardens", got a "12 min to walk" note and set off.
It kept lengthening as we went and then finally, we got to a padlocked gate. At that point, we were on the opposite side of the gardens to the main entrance and had walked a couple of miles. I'd chalk it up to my sheer idiocy, but we were in company with a couple in their 20s, a family, and another small group and we only took the train into Florence that same morning and had not gotten the lay of the land.
We kept going the same direction since we'd already made it halfway (so we thought), but it was trying to take us to the center of the gardens from the rear, which is not possible. We ended up walking around 6 miles total and missed our entrance time. They still let us in, but no one wanted to walk around the gardens and everyone was extremely irritable and blistered at that point.
The address should be Piazza dei Pitti 1