BAR HARBOR — Thanks to the partial government shutdown, Acadia National Park is closed.

But try telling that to the crowds of people — tourists and locals alike — who took advantage of Saturday’s beautiful weather to bike on the carriage trails and hike the park’s mountains anyway.

“It’s perfect weather, and there’s a zillion people out there, walking around the barricades,” said a Chicago woman who declined to share her name with the Bangor Daily News.

She and her husband had just biked around Eagle Lake on their first, long-planned visit to the park, and were looking for ideas for a short hike to do next.

“People aren’t going to let the government get in the way of what our tax dollars are paying for,” she said. “We drove all this way — we’re not going to sit on the outside and look.”

But that attitude is becoming a problem for the skeleton crew of law enforcement rangers who are struggling to keep people like the Chicago couple safe. Ranger Ed Pontbriand said that trying to close Acadia National Park, with its many entrances, is like “herding ants.”

“People are telling visitors — ‘Oh, the park is as porous as cheese,’” he said. “In order for us to enforce the closure, we’d have to have more people working than we do in a normal day. We’re so overwhelmed.”

On Saturday, he was one just four rangers on duty when a 69-year-old Portland woman fell and hurt herself while hiking on Flying Mountain and could not hike out. The woman’s companion, a registered nurse, was able to control the bleeding from a gashed knee while waiting for medical help, Pontbriand said. Another ranger checking the barricades on the west side of the park got to the scene less than half an hour after the 10:54 a.m. call and helped the woman, who was not being named in accordance with park policy.

Pontbriand said that all four rangers and five Mount Desert Island Search and Rescue volunteers helped with carrying out the woman on a wheeled litter. They brought her to the trailhead, where they placed her in the back of a ranger pickup truck and then drove her to the nearest road. There, they were met by the Southwest Harbor Ambulance, which brought her to the Mount Desert Island Hospital in Bar Harbor for treatment. The Southwest Harbor Fire Department also assisted with the rescue, he said.

If there had been another emergency at the same time, rangers would have had to determine which had the higher priority and make the other injured person wait, he said, adding that the minimal staffing makes rescue efforts extra difficult.

“We’re so short of staff, we can’t handle major incidents in the park. That’s why we’re asking people to do the right thing and honor the closure,” he said. “That’s the best way to preserve and protect the park. If they love the park, help us out.”

The situation is hard on park staff, who usually spend their time encouraging visitors to enjoy Acadia.

“We’re used to accommodating people,” Pontbriand said. “We’re always trying to figure out a way to make their experience in the park better. With this closure, it’s 180 degrees in the different direction … the message is, ‘The park is closed.’”

Lots of people in the area hope that message will be reversed, and soon.

Nancy O’Brien, the owner of Fiore, a speciality olive oil and vinegar shop in downtown Bar Harbor, said that so far, the park’s shutdown has not negatively impacted her business. She said that visitors with suddenly limited recreation options may have decided to go shopping instead.

“This whole shutdown is ridiculous,” she said. “All week, it’s been very busy for us — but it stinks for the rest of the country.”