Story highlights The Coast Guard's says its search for teen boaters Perry Cohen and Austin Stephanos will end at sunset Friday

The teens' families say they'll use a GoFundMe campaign to continue their search

Capsized boat was found Sunday, dozens of miles off Florida's Atlantic coast

(CNN) The Coast Guard says it has done all it could to find teen boaters Perry Cohen and Austin Stephanos.

But their families say a private hunt for the 14-year-olds will press on.

The Coast Guard's weeklong search for the two Florida teens, who went missing at sea during a burst of severe weather on July 24, will stop at sunset Friday, after an extensive coastal search that extended from southern Florida to North Carolina, Capt. Mark Fedor told reporters in Miami.

Searchers found the teens' boat Sunday, dozens of miles off Florida's Atlantic coast, well north of Jupiter, the community the pair left days earlier.

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