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

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

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

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

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

There are awards:

  1. Do It for The Gram Award: Share all the adventures that you are going on with your friends! Post a picture of you having fun on City Mosaic 2021 with the hashtag #citymosaic2021 #acrossuhub on instagram. We will select a weekly winner whose pictures have the most likes.
  2. Master Sculptor Award: Creativity is the name of the game! In every bound there is a mission that requires you to create a sculpture that relates to something that you have experienced in the bound. Post a picture of your sculpture with the hashtag #citymosaic2021 #acrossuhub on instagram. Our panel of judges will select a winner of the most creative sculpture and you will be crowned the master sculptor. Remember- use what you have and be creative!
  3. Going Viral on Instagram Award: Ready, set, action! Throughout the game, there are multiple missions that will ask you to take a video. Share this video on instagram with the hashtag #citymosaic2021 #acrossuhub, and our panel of judges will select the best video for a weekly winner.
  4. Globe Trotter Award: This is for the explorer at heart! The winner of this award will be the person who finishes all the bounds first with all questions attempted and missions completed.


  1. All pictures on Instagram MUST have hashtag #acrossuhub #citymosaic2021. Follow @Acrossuhub and make sure Across account is following your account so we can see your post.
  2. By entering your photo/video into this contest, you grant permission and give consent to Across U-hub for the use of the following photographs/videos for presentation under any legal use.
  3. Weekly award contest will be closed on every Sundays (July 10th, 17th, 24th, 31st) at 5:00 pm (EST). Weekly winners will be announced on the Wednesday after the contest closes and announced on Across U-hub social media. Other award winners will be announced at the closing ceremony. Prize packs for all the awards will be distributed after the game closes.
  4. Each participant shall be eligible to win only one time for each award. After the winner(s) is being chosen for the week, any remaining entries will not be carried over for entry in the next week.


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

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

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

Secret codes are set on each Bound and having the codes allow you to see the questions and missions to the Bound. The secret codes will be revealed to you after the info session.

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

Make sure your Avatar name (the name you use within the app) is the same as the name on your registration in order for you to be eligible for any 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 City Mosaic’s 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 a predefined scope where you explore a specific area or a theme.
Each Bound is designed to take between 1 to 4 hours to complete. (In the past, we often refer to this as a checkpoint)

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 sense of curiosity!!

No. 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 are no requirements to complete a Bounds in any specific order.

No. The Bounds are designed to be played at its designated locations, and do require GPS check-ins. The goal of City Mosaic is to encourage exploration of different neighbourhoods and 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 of who has completed each Bounds.

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

You might not be able to view external links which give 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 access).

Yes. Some questions require you to “check-in” to a specific location. If 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 check-in location and are receiving a strong signal without any tall buildings/ structures blocking you
  2. Restart the GPS on your phone

If you are unable to check in to a location, you can skip the GPS checkpoint. We only require 1 verified GPS check in per bound to validate the completion of that 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 goal 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 are stuck and wish to move on, most questions or location “check-ins” can be skipped. Tap on “Finish” or “Skip” if you wish to do so.

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

Make sure you tap on Complete Bound and ensure the upload is complete. It may take a while if you are using cellular data. Another option is to pause the bound and only tap on Complete when you have WiFi.

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. Message us on Facebook/Instagram or email us at [email protected]

The awards will be announced at the closing ceremony. Pls check the website for more information

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.

Across U-hub reserves the right to amend and make changes to the rules without prior notice. Check the City Mosaic website periodically for any changes/ updates during the race.