Play detective on a 1.5–2 hour self-guided urban mystery that guides you through San Antonio’s Pearl District and Riverwalk. Use the Questo app to solve riddles, learn local history, and explore restaurants, public art, and riverside views at your own pace.
More ways to explore the area's outdoor wonders
You step off East César E. Chávez Boulevard into cool shade where the Riverwalk curves and the Pearl’s red-brick buildings loom like clues waiting to be read. The city hums around you — bikes clicking, water lapping against stone — while your phone pings the first riddle. This is a walking mystery: part scavenger hunt, part urban history lesson, all self-guided through the Questo app.
Difficulty
easy
Duration
1.5–2 hours
Fitness Level
Suitable for most fitness levels; involves walking on paved trails with short stair sections.
Wildlife
History
The Pearl site started as a 19th-century brewery and evolved into a revitalized mixed‑use district; the Riverwalk was developed in the 1930s and expanded to connect cultural nodes downtown.
Conservation
The Riverwalk and Museum Reach projects are examples of urban river restoration that balance public access with waterway health; visitors are encouraged to stick to paths and pack out waste.
Reserve your spot on the EPA Files: Hidden Toxins Mystery Walk in San Antonio today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Charge your phone
This experience runs in the Questo app — a full battery and a portable charger make the route smoother.
Start early or late afternoon
Avoid midday heat and weekend crowds on the Riverwalk by beginning early in the morning or later in the day.
Comfortable footwear
Expect paved surfaces with occasional stairs — flat-soled walking shoes or sneakers are best.
Bring a reusable bottle
Water stations and cafés are scattered through the Pearl and Riverwalk, but carrying water keeps you moving between stops.
Smartphone with Questo app
Required to access the self-guided game and receive clues and directions.
Portable charger
Keeps your phone powered through the 105-minute experience and any photo stops.
Comfortable walking shoes
Provides support on paved paths and short stair sections through the Pearl and Riverwalk.
Light water bottle
Useful in warm months when temperatures in San Antonio can spike.
summer