Canadian Charlene Good happily embarked on a 10-day Caribbean cruise aboard the Costa Atlantica from the Port of Miami Wednesday, her husband, sister and sister’s boyfriend in tow. Despite carefully following news accounts of the grounding of sister ship Costa Concordia off Giglio, Italy, the travelers said they were not worried about their safety at sea.

“If it happened last week, it’s not going to happen this week,” Good said, adding she and husband Herve’ Benoit have taken many Costa cruises.

Said her sister Gloria Good: “It’s human error. It’s not Costa itself.”

Neither did the accident stop fellow passenger Justine Gallee of France from taking her first Costa cruise with daughters Lou, 4, and Joy, nine months, and friend Virginie Cordi.

“I hope everything will be okay,” Gallee said. I think they will pay attention to the security because of the events.”

While the two groups of travelers said they had no fear about their trip, cruise experts say it is difficult to gauge how many prospective cruisers have been scared off Costa and other lines in the aftermath of the shipwreck..

Costa spokesman Buck Banks said the company has not released any figures on cancellations in the wake of last Friday’s accident. Costa’s customer care department is handling calls and emails from jittery cruisers, he said, and those who cancel may get a partial refund, depending on how soon they are due to depart.

But Anthony Hamawy, president of Cruise.com, Inc., which sells vacations on more than 75 cruise lines worldwide, said he has seen no increase in cancellations or changes in booking patterns since the accident.

“It’s very early to tell a pattern,” Hamawy said. “I haven’t seen a drop in volume to make me think there’s a drop in business. We’re still getting quite a bit of calls booking cruises.”

Before the Costa Concordia grounding, Hamawy said cruise sales during the winter booking season were up 15 percent over last year, with an eight percent increase in average ticket prices.

“Over 16 million people take a cruise each year,” he said. “Anyone who’s ever taken a cruise understands it’s a very safe way to travel.”

Dwain Wall, senior vice president and general manager of CruiseOne and CruisesInc., a leading cruise ship travel agency franchise, said his firm has had no cancellations since the accident. In fact, bookings are up nearly six percent this week from the same period last year. And Wall said his agency has rebooked passengers from the Costa Concordia on other Costa liners.

“These kinds of things show people are seeing this as a one-off, freakish incident,” Wall said.

He said there is no way to gauge how many first-timers thinking of booking a cruise decided against it in the wake of the tragedy.

“We might see some shift to land [vacations] as an option, but we won’t know that for awhile,” Wall said.

An upswing in bookings of river cruises and land destinations is a definite possibility because of the cruise industry’s poor handling of the crisis, according to Mark Murphy, publisher of Vacation Agent — a monthly magazine targeted to travel agents — and CEO of the Travalliance media company.

Murphy completed a survey Wednesday of 1,500 travel agents from traditional brick-and-mortar companies who he says book about 70 percent of all cruises. According to the agents, 34 percent of travelers booked on cruises who contacted them expressed concerns about the safety of cruising in general — not just on Costa ships, or Costa’s parent company Carnival Cruises.

What this means, Murphy said, is that travel agents “are thrust into the role of crisis managers for the cruise industry as a whole,” but the industry is not backing them up with advice and information to reassure their customers.

“I’m waiting for the industry to give us some safety numbers,” he said. “Get the numbers out. If we could do that, it will help the cruise lines, the travel agents, and the customers.”