New Hampshire tourism officials estimate more than a million out-of-state visitors are expected to spend in excess of $155 million over the Fourth of July holiday period in the state.
The period from Friday, June 29, through Sunday, July 8, kicks off New Hampshire's busiest travel season.
The majority of visitors will be coming from New England and the Middle Atlantic states.
"The Fourth of July is a critical time for businesses and attractions throughout New Hampshire that draw visitors to experience outdoor adventures such as kayaking, biking, ATVing, and camping that are so popular during the summer months, as well as the state's tax-free shopping," said Victoria Cimino, director of the Division of Travel and Tourism.
The division overall expects more than 3.4 million visitors who will spend $1.8 billion this summer.
Some events planned over the holiday week include the Prescott Park Arts Festival in Portsmouth, the Lobsterfest aboard the M/S Mount Washington in the Lakes Region, and Clydesdale Camera Day at the Budweiser Brewery in Merrimack.
New Hampshire Department of Safety officials also put out warnings about handling fireworks. It said between 2012 and 2014, there were 51 fireworks-related injuries treated in New Hampshire hospitals. Twenty-seven percent of those cases were out-of-state residents.