PEMBROKE PARK, Fla. -

It's been several successful seasons for endangered sea turtles in Florida.

The number of green sea turtles has multiplied during the past two decades.

They are now thriving in protected waters from Melbourne to the Florida Keys.

According to the Geological Survey, in 2011, statewide nest counts amounted to 15,352. The total included 7,513 in Brevard County, 3,733 in Palm Beach County and 261 in Broward County.

Wildlife experts say intense conservation efforts have helped increase the population of sea turtles.

The nesting season runs through September so wildlife experts say it's a good idea to be careful if you're out on the water.

Boat strikes are their biggest threat.