We had planned to go to Cinque Terre today but it was rainy and cold so we switched our days around and started the day in Pisa.
We ended up getting to Pisa at 10am right as they were opening. We found a parking lot and walked the rest of the way to the walled area with the Tower. It is surrounded by several other beautiful buildings as well. Make sure you purchase your tickets right away as they give you an assigned time to enter the Tower and on a busy day you could have a very long wait! They will instruct you to place your backpacks & handbags in the lockers that are provided to you.
We chose to walk inside the cathedral as well, it was included with the Pisa ticket, so beautiful and worth the time. There are other buildings as well, we opted out of those. The Leaning Tower of Pisa is a must if you are in the area, even on a wet rainy day!