Any visitor who is not staying the night must pay a 5 euro ($5.35) entry fee online before walking into the lagoon city on April 25 - a national holiday and the first of 29 days this year
Jason Baird, a local 34-year-old martial arts teacher, has taken to dressing up as the Marvel superhero for his daily jog, replete with acrobatic jumps and somersaults.
"It's just Co-op, and then I'll be back," Baird said of his route, referring to the local grocery store.