Memorial Day NEXT DATE: | 10 a.m. to 5 p.m. | category: Family Programs | location: Visitor CenterFree admission for military veterans and their families. Related Events04June 2025 | 5 to 8 p.m. | WednesdaySummer Nights at Hagley presented by Dogfish Head Craft BreweryRelax and enjoy Hagley's beautiful property in the evening hours. 13June 2025 | Gates open at 5 p.m. | FridayFireworks at Hagley - June 13 & 20, 2025Don’t miss Delaware’s best fireworks, held June 13 & 20, 2025! The theme is Coming To America: The du Pont Family's Story. 29June 2025 | 1, 2 & 3 p.m. | SundayCannon FiringsHave a blast during your visit to Hagley with cannon firings! 14July 2025 | 9 a.m. to 4 p.m. | MondaySummer Camp at HagleyFun, hands-on, immersive experiences for kids this summer at Hagley Museum! 09August 2025 | 11 a.m. to 3 p.m. | SaturdayScience Saturday Presented by Young Conaway Stargatt & Taylor, LLP – River RangersLearn how to gauge the health of our local waterways by observing the variety of critters living in and around it. 09December 2025 | 4 to 7 p.m. | TuesdayHoliday Nights at HagleyEnjoy a rare opportunity to see Eleutherian Mills, the first du Pont family home built in America, dressed for the holidays and illuminated with softly glowing lights.