Looking for a great beach for summer vacation? 

Stephen Leatherman, aka Dr. Beach, has announced this year's top 10 picks for the best beaches in the U.S. 

Leatherman, professor and director of the Laboratory for Coastal Research at Florida International University, is considered a world authority on coastal storm impacts, beach erosion and has been ranking beaches since 1991.

Dr. Beach uses 50 criteria to select his spots, including water quality, safety and environmental factors.

Three of the top five beaches were in Hawaii this year. Kanhanamoku Beach, on the west end of Waikiki in Hawaii, rose from number two to take the top spot this year, beating out Main Beach in East Hampton, New York, which didn't make the top 10 list.

With its wide sandy terrain and no known drowning incidents. Dr. Beach says it is an ideal location for families concerned with beach safety.

Leatherman also recommends popular activities and common wildlife found at each location. 

So, pack your towels and sunscreen, and check out country's best beaches below.