Conversation so far:
why are the bricks in san juan blue
The cobblestones, called adoquines, were made as an ingenious use of the waste, or slag, that resulted from iron smelting.
what is the history of san juan
In 1508, Juan Ponce de León founded the original settlement, Caparra. In 1509, the settlement was abandoned and moved to a site which was called at the time Puerto Rico.
when did the name san juan get added to puerto rico
In 1521, the name San Juan was added, and the newer settlement was given its formal name of San Juan Bautista de Puerto Rico.
how popular is old san juan in the present day
With its abundance of shops, historic places, museums, open air cafés, restaurants, colorful homes, and tree-shaded plazas Old San Juan is a main spot for domestic and international tourism.

Question: how far from puerto rico
Self-contained rewrite: how far is san juan from puerto rico