This was my third time on the Mariner OTS and I will probably not go back.
We stayed the night before at the Crowne Plaza in San Pedro. We chose that because of the proximity to the ship. Beautiful hotel room, but the area had a little to be desired. They have a shuttle to the pier and we got to sleep in expecting to arrive on board around 1pm so we could go right to the cabin, but that did not happen.
Upon arrival at the pier we were greeted to a very long line that wrapped around in a lot of different directions. There were no ropes or lines to tell you where to go and not a lot of RCCL people to make sure the line was being directed correctly. We saw a lot of people just cutting in line. It took us around 45 minutes to get through security and to the desk.
Nice. Well kept and attended to.