If you're planning a beach day on Florida's Atlantic coast, you may want to do a little research first. Daytona Beach and Cocoa Beach have both landed on a list of Florida's dirtiest beaches, according to a study that analyzed Tripadvisor reviews.

The rankings were compiled by Just Bottle, a company that examined traveler feedback to identify beaches where visitors most frequently raised concerns about cleanliness. Both Daytona Beach and Cocoa Beach — two of Central Florida's most visited coastal destinations — made the cut.

The findings are a reminder that popularity doesn't always go hand in hand with pristine conditions. Both beaches draw enormous crowds throughout the year, which can put pressure on maintenance and cleanup efforts.

For beachgoers who prioritize cleanliness, the study suggests it may be worth exploring some of Florida's lesser-known or more highly rated coastal alternatives before packing up the cooler and the sunscreen.

This report was originally published by WFTV, citing research conducted by Just Bottle.