It's a bay tourists dream of and its inviting beauty beckons visitors in.

"I've never seen a place like this. I honestly think this place has been kissed by the Hawaiian gods. Amazing," Marcus Paul, a visitor from Los Angeles said. 

 However, lifeguards say looks can be deceiving. Rough currents at each end of the bay have claimed lives before.

"When the waves break over the reef the water has to go out somewhere inside the bay. So those two spots are the hot spots there's current and people get stuck into the rip a lot right there," Ocean Safety Captain Charles Oliver said. 

Beginning Sunday, lifeguard hours will be extended. They will now be on site starting at 6 a.m., an hour earlier.

According to Ocean Safety, people pack the beach as early as 6:30 a.m. because they're trying to beat the crowds, and luckily lifeguards have been there before their shift to make rescues. 

"I did CPR a couple times before 7 a.m. so yeah crucial," Oliver said. 

According to the Department of Health, thirty drownings have occurred at Hanauma Bay within the last decade, compared to twenty-one drownings reported on O'ahu's North Shore during big wave season.

Captain Charles Oliver has worked these waters for ten years, he says it can be challenging to spot those in trouble at the popular snorkeling destination.

"It's a unique place to guard because a lot of people are faced down because they're snorkeling so you have to figure out all what I'm looking for it is snorkel hitting the water so that guy needs help, he's not breathing," Oliver said. 

Lifeguards will be scheduled to remain on site until 6 p.m. 

The extended hours are all part of a pilot project. Ocean Safety hopes it can eventually extend hours at other O'ahu beaches.