The late arrival at port, 3PM, discouraged participation in any organized excursions. San Juan, PR, is a lovely Caribbean island with the benefits of being a US territory! There was much discussion prior to arrival of a potential visit to the local CVS! (?) We never personally found the CVS, but heard later that is was a huge destination for the NCL cruisers! We walked about and had a perfect margarita at "The Parrot Bar".
Another port and no organized excursion! We were familiar with the island and upon leaving the ship took a taxi to Grand Case, on the French side of the island. ( A bargain at $25/2 one way!)
We found a wonderful restaurant that offered a lounge chair and beach umbrella on and absolutely exquisite stretch of Grand Case beach, with the simple order of an iced tea!( and not a screaming child or rambunctious teen in sight!)