Fun Spot America owner John Arie shared posts on Facebook that falsely claimed face masks could cause a harmful buildup of carbon dioxide and oxygen deprivation.
Indiana Beach was saved from closure by Gene Staples, a Chicago businessman who bought the 94-year-old amusement park.
Pending state approval, Hersheypark would reopen on July 3 and debut its new B&M coaster, Candymonium.
Guests are encouraged, but not required to wear face masks, though coverings will be required for the park's food and beverage employees and any workers who handle cash.
Orlando Rising owner John Gregory talked about his earliest theme park memories, how theme park blogs can improve and all the unknowns on how the parks can reopen with COVID-19 still a threat.
Icon Park and Fun Spot America's two parks will be closing due to the COVID-19 pandemic, with no timeline for when they may reopen.
IAAPA estimated that if theme parks stay closed through June, the industry would lose 40 percent of its jobs and nearly $12 billion in revenue.
Most — but not all —park operators around Central Florida have followed Disney and Universal in closing their theme parks due to the COVID-19 virus.
Addressing one of the major concerns of closing the resort, Disney said it will continue to pay its employees while the parks are shut down.