Some beaches are closed because of a "harmful cyanobacteria bloom," also known as blue-green algae. Swimming in water with excessive bacteria can caused gastrointestinal and respiratory issues, as well as skin rashes, itching and earaches.

Massachusetts residents can buy alcohol from liquor stores on the Fourth of July, according to the Massachusetts Alcoholic Beverages Control Commission Regulations. Beer, wine and liquor can also be purchased at grocery stores that are open as well.

Swimming in unsafe waters can result in gastrointestinal and respiratory health issues, as well as blood and urinary tract infections.

Thirty-three beaches across Massachusetts are closed ahead of the Fourth of July holiday due to elevated bacteria levels. The Massachusetts Department of Public Health provides an updated dashboard of beach closures,