Howl-O-Scream SeaWorld San Antonio

Haunted houses and scare zones, running through to 1 November.

One of the five US Howl-O-Scream locations, and one of the two that run through to 1 November rather than closing on Halloween itself.

Also in Texas

Cutting Edge Haunted House

Cutting Edge, Fort Worth

Dates to be announced

A hundred-year-old abandoned meat packing plant, and one of the longest haunts in America.