As others said the milage is close but Grand Cypress is near Disney Springs (Downtown Disney) which gets insanely congested. It could easily take 40 minutes to commute between the two depending on the time of day. If you want Disney stay at Grand Cypress, if you want the convention center or Universal area stay at the Regency or hyatt Place convention center or hyatt place Universal.
About 5 miles
About 10 minute drive. The Regency is at the Convention Center. Grand Cypress is Lake Buena Vista
About 15 minutes.
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