§ Missions // Sioux Falls, South Dakota
Sioux Falls, South Dakota

Operation Falls Sentinel

Two men shaped Falls Park, and both left their marks on purpose: a future senator's flour mill and an Edison man's powerhouse. Six objectives, about a mile on foot, from the stone viewing tower past the falls, the mill ruins and the overlook to Jacobson Plaza. Prove you belong here.

Field kit laid out on dark slate: a phone showing a map of Falls Park, a brass compass, a field notebook and a chunk of pink Sioux quartzite
Field kit · Falls Park, Sioux Falls
06Objectives
1 miOn foot, about
1 hTypical time
All agesEasy walk
§ Recon // field photos

Where the mission takes you

Real places, all in Falls Park. Highlights: the stone viewing tower, the falls of the Big Sioux River, the 1881 Queen Bee Mill ruins and the overlook above them.

§ 01 // In the field

What to expect

A walk through Falls Park with puzzles on its landmarks. Everything is outdoors and free: no tickets, lines or opening hours.

01

Start at the tower

Begin at the Falls Park Visitor Information Center and Viewing Tower. The team plays on one phone, in its web browser.

02

Walk and solve

Each objective asks you to find something real: a count, a year, a shape, a name. Every puzzle has three free hints, and the third is the answer.

03

Calls from Operations Center

After each stop, Operations Center calls with what you found and where to go next. Every message also appears on screen.

04

Bonuses for sharp eyes

An off-book signal hides along the route for a bonus badge, and on the long walk you can send photos for an analyst's read. Skip them and you still finish.

Route // one way
StartViewing Tower
FinaleJacobson Plaza
ParkingAny Falls Park lot, free
AccessFree, outdoors
RestroomsVisitor Center, picnic shelter
TeamAbout 5 per phone

Paths run close to fast water and wet rock. Stay on the paths and platforms and keep children close.

§ 02 // Mission pass
$20

One phone runs a team of about 5. Add phones for $5 if you'd like to split up.

Buy this mission · $20

Secure checkout on play.questthecity.com. Your play link arrives by email.

First phone$20
Each extra phone$5
Your play linkBy email
PassGood for one year
RefundsFull, within 30 days
App or accountNone needed
Mission FAQ
How long is the pass good for?

One year. Play on the day that suits you; the link waits.

Can I get a refund?

Yes. Full refund within 30 days of purchase. Reply to your order email.

What if we lose signal?

Open your link once with signal, before you head out. After that the mission keeps working if service drops between stops.

Do we need an app or an account?

No. It runs in the phone's web browser. Nothing to install, nothing to sign up for.

How many phones do we need?

One phone runs a team of about 5. Add phones for $5 each if you'd like to split up; each phone keeps its own progress. Bringing a school or youth group? See Groups.

Is the observation tower part of it?

No. The tower is open during Visitor Center hours and worth a trip up, before or after, but the mission works from the outside at any time.

Is it safe for kids?

It's a walk on park paths, with steps and fast water nearby. You're responsible for your group's safety: stay on the paths and platforms and supervise minors. Full details in the terms.

Also in the network

Operation Liberty Tree · Annapolis, Maryland · and Operation Long Shadow · the National Mall, Washington, DC.

See every mission