City Mosaic is an urban adventure for those who are looking for an out-of-the-ordinary experience. Participants have the opportunity to get out of the house and explore hidden treasures in neighbourhoods across the Greater Toronto Area.

Due to continual restriction in group gathering, City Mosaic 2021 will be held as a month-long event instead of a single-day event. Participants can play alone, or with members of their household (or one other household if they live alone) while maintaining proper safety measures.

Participants will explore neighbourhoods at their own time and own pace with the ActionBound app on their mobile device.

You are free to choose your mode of transportation, be it walking, biking, skateboarding, driving or taking public transport.

No. City Mosaic can be played alone, or with members of your household using one mobile device.


You need to be an Across U-hub member to register. Sign up for an account for free, or login and registering here.

You will receive a confirmation email with the rules and instructions about the Bounds you’ll explore.

There will be an info session which we strongly recommend you attend.

The secret codes allowing you to see the questions and missions will be shown after the info session.

If you are using only one device to play, you will only need to register once.

Make sure your Avatar name (the name will use this on the app) is the same as the name on registration in order to be eligible for awards.

Yes. Registration is open until July 31.

No. The app is free to download, but you will only get the secret codes to access the City Mosaic bounds after the info session.

Before you start

ActionBound. This app is available on iOS and Android and can be downloaded for free.

A Bound is an interactive game which guides you to explore a specific area, or theme.
Each Bound is designed to take between 1 to 4 hours to complete.

A Bound consists of a map, information about the area you are exploring, missions, quizzes, photo/video quests, locations check-in, within a geographical area. Watch this video for more details.

Your phone, powerbank for your phone, water bottle, comfortable shoes and your curiosity!!

There are many Bounds you can choose from. You can pick and do as many or as few Bounds as you wish.

While there is usually a recommended route/order within each Bound, there is no requirement to complete the Bounds in a specific order.

No. The Bounds are designed to be played at designated locations, and require GPS check-in. The aim of City Mosaic is to encourage exploration of different neighbourhoods, or areas.

We encourage you to download the Bounds and plan your trip before heading out!

During the game

Make sure you use your “Avatar Name” created during registration so that we can keep track who has completed Bounds.

No. The bound’s media content will be preloaded. You can download the Bound before heading out to avoid data usage.

You might not be able to view some external links with extra information but it will not affect your ability to complete a Bound.

You will need Internet access to complete and upload your results (which can be done when you have Wi-Fi).

Yes. Some questions require you to “check-in” a specific location. If you find out that you are unable to check in, here are some things that you can do to troubleshoot:

  1. Ensure that you are standing right in front of the checkpoint and a strong signal without any tall buildings/ structures blocking you
  2. Restart GPS on your phone

If you are unable to check in for a location, you can skip the GPS checkpoint. We only require 1 verified GPS checkpoint check in per bound to validate completion of bound.

The app does not allow going back to re-do a GPS check-in or a quiz type question.

No. You can pause the Bound and continue at a different time.

Most questions and missions can be done with just the information at the location and the contents provided on the app. It is more fun to complete a Bound this way.

Since the aim of the game is to let players explore and discover and learn in their own way, you are allowed to use any tools or assistance at your disposal.

Try to find the location or answer the questions to the best of your ability but if you really can’t, most questions or location “check-ins” can be skipped. Tap on “Finish” or “Skip” if you really want to.

You are free to choose your mode of transportation, be it walking, biking, skateboarding, driving or taking public transport.

Make sure you click complete bound

Check out this video for some game tips!

After the game

Enter your email address when you complete a Bound. The app will send you your result.

Dashboard webpage: https://acrossuhub.com/city-mosaic-dashboard/

Yes, you can play as many times as you want. Although we will only count your first submission.

We always welcome volunteers to help us. Direct message us on Facebook / Instagram or email to [email protected].

The awards will be announced in the closing ceremony. Please check the website for more info.

Safety and rules

We ask players to follow all COVID-19 public health regulations and advice. In the case of a stay-at-home order, the timing of the City Mosaic event will be adjusted accordingly.