The Presidio is reportedly haunted due to its long history as a military post and burial ground, with reported phenomena including ghostly soldiers, sounds of patients, and unexplained lights. The former Letterman General Hospital is a particularly notorious site, with reports of disembodied footsteps, voices, and dark figures. Other areas, such as the Pet Cemetery, are also cited for "weird goings-on". This abandoned military hospital is a hotbed for paranormal activity. Visitors and trespassers have reported hearing patients walking in the halls, voices from closed rooms, and seeing flashing lights and dark figures. Some reports mention sightings of men in old army uniforms, adding to the military connection and spookiness of the area. The Pet Cemetery, located within the Presidio, is also said to be a location for strange occurrences. Visitors have reported experiencing unexplained cold spots within the grounds, a common sign of paranormal presence. Even the recently renovated Presidio Officer's Club is rumored to house restless spirits. The Presidio served as a military post for over 200 years, a period during which many lives were lived and lost, creating a rich historical and potentially spiritual legacy. The grounds contain the graves of Native Americans, soldiers, and numerous pets, further contributing to its reputation as a spiritual site.