JACKSONVILLE, Fla. -- Summer is just around the corner and the First Coast has already seen two drownings in less than a week.

Although both incidents were not due to sea conditions, families on the First Coast are thinking of beach safety.

Jon Calhoun said he trained for three months to swim in the Battle on the Beach race.

Before the race Calhoun was warned about conditions and told to help swimmers in distress, but never expected he might have to.

Calhoun said he was about ten feet from the man who drowned at the event Sunday.

"I didn't see him go under. I saw him making a lot of splashes, but that's common out there. We're swimming with hundreds of people so the splashes to me when I saw it they look a little bit excessive, but nothing that was too extraordinary for me to stop and say oh gosh let me save this guy," said Calhoun.

The event organizer says the man had a heart attack in the water.

"I saw him for a couple seconds and maybefive seconds later there were Ocean Rescue swimming towards him," said Calhoun.

It's the second drowning on the First Coast after Paul Demshardrowned at the beach in Hanna Park Wednesday.

Demshar drowned trying to save his grandson who was caught in a rip current.

When there is strong winds and a strong current -- lifeguards say it's a recipe for disaster.

"The biggest issue with that is missing children. The kids will go in the water, the parents won't pay as much attention as they should and the kids will get separated from the parents because of the current," said Lt. Lifeguard of Jacksonville Beach Richard Ghiotto.

That's why Teeara Jones said she talks to her children before they go to the beach and makes sure they are near her or her husband.

"We try to tell them to stay close to us, don't go to farinto the water and just stay where we can see them. That's why we're by the guard too," said Jones.

Last year the First Coast had very few drownings, and none were at Jacksonville Beach.

But withsummer around the corner, lifeguards say the best safety tip to avoid drowning is to never underestimate the current.

First for you -- Some tips for swimmers from the Red Cross are to swim in designated areas supervised by lifeguards, never swim alone and make sure any inexperienced swimmers or children are wearing a life jacket or flotation device.

The Red Cross also suggests to first check the water first whether it be at the beach, pool, or tub at homeif a child goes missing.

Experts say a child can drown in 20 seconds and quick action could help prevent death or disability.