Summer is here, and it’s drive-in season! This summer, the few drive-ins that remain in business have seen a massive resurgence in popularity due to COVID-19. But, you may remember when the Merrimack Valley was teeming with outdoor theaters, including the Riverview, Merrimack Park, and Plaistow Drive-Ins. Enjoy this classic Haverhill Journal segment where we revisit the Merrimack Valley’s lost drive-in theaters.Please note, HC Media is not affiliated with any of the following sites and services. These sites and services may have their own privacy policies and customer service policies.