California's Largest Water Park, San Dimas
111 Raging Waters Drive, San Dimas, CA 91773
Research updated June 2026
Age
All Ages
Cost
$$$
Day-pass ticket pricing varies by season; check the official Raging Waters website for current rates.
Access
Wheelchair OK
Paved walkways throughout the 60-acre park. Most attractions require climbing stairs.
Equipment
Photos OK
Est. 1983 · California's Largest Water Park · Continuously Operating Since 1983
Raging Waters Los Angeles opened June 18, 1983 in San Dimas, California, at the eastern edge of Los Angeles County. The 60-acre park has been continuously branded as California's largest water park and includes numerous slides, a wave pool, and a lazy river. The park has changed corporate ownership multiple times since opening and currently operates under the Palace Entertainment portfolio.
Like many large water parks of its era, Raging Waters has experienced periodic safety incidents and medical emergencies during operation, several of which have been covered by Los Angeles-area news outlets. The Shadowlands-era narrative references a specific child drowning that became the basis for staff ghost lore; specific documentation of an incident matching that description was not located in available news archives, and Hauntbound treats it as park-staff oral tradition rather than verified history.
The park remains an operating commercial venue. The Shadowlands-listed phenomena are not part of the park's daytime visitor experience and are confined to after-hours staff and security reports.
Sources
Raging Waters' paranormal lore circulates almost entirely among park employees and security staff and is not part of the daytime visitor experience. Reports cluster in the Wave Cove area and the former first-aid building, now used as a freezer storage area near the lower plaza food service. Employees know the back-of-house area informally as "the Dungeon."
Nighttime staff describe in-park telephones in the Wave Cove area ringing at unusual hours, with static and no caller on the line when security responds. Security personnel investigating ringing phones have reportedly found the receiver swinging as if recently dropped. The voice of a young girl asking for help has been reported on the line by some security staff.
After-hours staff walking through the upper pavilion food court area report being called by name and hearing running footsteps approach from behind. No visual apparitions are reported in the canonical version of the legend.
The specific child drowning at the heart of the lore is not clearly documented in published news archives, and the story should be treated as park-side oral tradition rather than verified incident history. Hauntbound notes that the Shadowlands-era narrative speculates about the location of an old first-aid station being repurposed for cold storage; this is a plausible source for staff discomfort about the area independent of any paranormal explanation.
Visit Raging Waters Los Angeles, a 60-acre water park in San Dimas operating since 1983. The Wave Cove and surrounding areas referenced in regional ghost lore are part of normal daytime park operation.
Every HauntBound history is researched from documented sources. We clearly separate verified historical fact from paranormal folklore.
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