b'SEASONAL CELEBRATIONSWonders of WinterA celebration of the coldest season inside Hempstead House, where fireplaces roar and the mansion is filled with fun and exciting family activities.the lonG islandfairy festiValOur new Spring festival celebrates nature, the power of creation, and the magic of imagination.summer solstiCeCelebrationThe longest day of the year is celebrated on the beautiful grounds of the Preserve, overlooking the sunset on the Long Island Sound.autumn festCelebrate Fall with fun, seasonal outdoor activities for children ofall ages!'