According to the website of Paralela Universo, Paralela Universo is a one day Esperanto celebration occurring in many locations simultaneously. The event includes lunch, group activities, dinner, and lasts from about noon until 8 pm.
The website states that both Esperanto speakers and people interested in Esperanto are welcome. North American cities with a Paralela Universo event include: San Francisco, Montreal, Aurora, Colorado, Monterrey, Mexico, Austin, Texas, Seattle, Washington; and many others. Visit the website of Paralela Universo to learn more and find the location closest to you.