Nicole "Snooki" Polizzi and Ronnie Ortiz-Magro are determined to stay in shape while filming Jersey Shore's fourth season in Florence, Italy. The only problem? The native New Yorkers can't seem to find the local gym.

"I don't know how to read the map," Polizzi, 23, admits in a sneak peek from Thursday's episode. "I'm supposed to be wearing glasses, but I'm not doing that because I would look really ugly."

As she and Ortiz-Magro, 25, struggle to make their way through the foreign city, Polizzi grows frustrated. "I can't read the map, and Ron can't read the map because. . . Ron's Ron."

Jersey Shore airs Thursday at 10 p.m. EST on MTV.