Paranormal Evenings. Come and experience the phenomenon frequently known as ‘ghost hunting,’ led by Island Paranormal Society, a group with over 10 years of paranormal experience. Join Island Paranormal Society’s expert staff who use investigative tools to conduct readings on the grounds of The Frelinghuysen Arboretum, and inside the Colonial Revival Mansion built in 1891. This program is designed for participants ages 16 and older. $45/person. All programs are rain or shine, no refunds.