Whenever we go to Puerto Rico we stay on the southwestern side of the Island in Boqeron. There is a small town called Cabo Rojo nearby that has the best ice cream I've ever tasted. It is called Rex's.
The ice cream is more like a gellato, very dense and extremely flavorful and it is served like a soft serve custard in cups. My personal favorite is Pena (pineapple).
Rex is a Puerto Rican small chain, I saw others in Western/Northern PR.
Anyone else tried Rex?