It's the first step in government promises to gradually roll out such connectivity options on an island that the Internet revolution has largely passed by.
Authorities have been installing the hotspots along 23rd Street in the Vedado neighborhood in recent weeks, and they apparently went live Wednesday night.
Dozens of people, many of them young, were checking out the service this morning with smartphones, tablets and laptops.
Sixteen-year-old Angel Padron called the signal speed "acceptable," robust enough to view videos on YouTube. Users need to have an account registered with state telecom monopoly Etecsa. The service costs USD 2 an hour.