LAS VEGAS -- Las Vegas is known for big events from the Rock 'n' Roll Las Vegas Marathon to New Year's Eve.

Every year the Las Vegas valley hosts 40 million people. That is why authorities say they are always vigilant and everyone else should be too.

While no one wants to live their life in fear, but the bombings in Boston are a reminder that it is best to be prepared for anything.

Sherry and Dallas Anderson are from Indiana and have been to Las Vegas about 40 times over the last 20 years.

"I always feel safe in Las Vegas," Dallas Anderson said.

They watched the bombings in Boston in disbelief, but they agree they cannot let the tragedy stop them from traveling to places like Las Vegas.

"How do you stop that? That is pretty hard, but I think the government does a pretty good job of looking into those areas."

Clark County prepares for not only natural disasters, but for danger caused by man.

Anyone interested in becoming a tour operator at Lake Mead can apply for the 10-year contract that begins in October.

The National Park Service is soliciting for proposals to operate sightseeing boat tours and other related services at Lake Mead National Recreation Area.

The current Lake Mead Cruises concession contract, which expires Sept. 30, includes operation of the Desert Princess paddlewheel tour boat and the Lake Mead Cruises landing at Hemenway Harbor. The new concessioner will provide sightseeing tours and related services in the Boulder Basin/Hoover Dam area of Lake Mead.