Indoor haunted house that takes about 15 minutes to walk through and stays open in rain. It is built for guests over 12 and not recommended for children under 12. Masks and costumes are not allowed inside.

Georgetown Morgue

No-touch haunted attraction with live actors and multiple scare zones at the Nile Shrine Golf Course, with an average walk-through of about 20 minutes. Guests wait in a virtual queue at a midway with food, escape games and a 21+ Fear Garden. A lights-on Family Funfest runs Saturday, October 17.

Nile Nightmares Haunted House

Volunteer-run nonprofit haunted trail at Royal Arch Park, presenting the 2026 show Shady Grove Asylum. Full Fright nights run Fridays and Saturdays in October, with daylight family walks on Sundays, October 4, 11, 18 and 25. Full Fright is not recommended for children under 10.

Haunted Forest of Maple Valley

We list 3 haunted houses in Maple Valley, Mountlake Terrace, and Seattle. 2 have posted 2026 dates, hours, or a season update, shown in the table below.

Farm	City	2026 season
Georgetown Morgue	Seattle	Open Sep 25 – Nov 7
Nile Nightmares Haunted House	Mountlake Terrace	Open Oct 2 – Oct 31
Haunted Forest of Maple Valley	Maple Valley	Listing checked October 2; no 2026 dates posted

Haunted Houses in Washington

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Haunted Houses listings in Washington