Mission SUNSCREEN by Glitch Hunters

London becomes a spy puzzle walk. Mission SUNSCREEN by Glitch Hunters turns the City of London into an interactive spy game where you solve clue after clue on your phone, at your own pace, and pay attention to details most sightseeing crowds miss. One thing to consider, though, is the amount of phone time and close-up reading you’ll do while you’re walking.

I like that this is built for real-life schedules: the game runs for about 3 to 4 hours, with built-in pauses for food and drinks, and it covers roughly 4,000 steps. It’s also fully wheelchair accessible, works in teams of 2 to 6, and keeps the focus on what you’re seeing right there in the streets around you.

Key things to know before you start

• Phone-guided storyline: The route and puzzles are driven by a web app on your phone.
• Do it your way: You can stop and start, rather than rushing through.
• City-of-London focus: You get a route built around iconic-but-often-overlooked spots.
• Puzzle difficulty that varies: Some bits are easier, and some are more challenging, so plan for a little teamwork.
• On-foot, about 4,000 steps: Comfortable shoes matter more than you think.
• A hint or answer option: If you really get stuck, there’s a way to move forward.

Mission SUNSCREEN: a phone-led spy game through the City

Mission SUNSCREEN by Glitch Hunters is a 3 to 4 hour, on-foot treasure hunt set in the City of London. You’re not just walking from landmark to landmark. You’re reading clues, solving puzzles, and following a storyline that makes you slow down and notice what’s right in front of you.

I especially like the approach of using a phone app to guide the experience. It keeps the flow clear, so you spend your energy on the challenge, not on guessing where to go next. And because it’s a game, you’ll look at buildings and street details with a purpose, not just as background scenery.

The starting point at Cannon Street and how pacing really works

You meet at Cannon Street Greater, Cannon St, London EC4N 6AP, and the activity ends back at that same meeting point. That matters because you’re not forced into an awkward end-of-walk situation where you have to figure out transportation after you finish.

The big practical win here is flexible pacing. The game is designed so you can stop, start, and take breaks when you need them. Built-in pauses for grabbing food and drinks are part of the plan, which makes a real difference on a walking activity in central London.

It’s also designed to fit groups. You can play in teams of 2 to 6, or split into multiple groups if you want a head-to-head feel. That’s a good format for friends, family, or work teams, because you’re not locked into a single pace for everyone in the group.

One simple caution: plan for more phone reading than you might expect. You will be looking at your screen a lot, and central streets can be busy. If you do the game on foot, keep your head up when you step off the curb, and watch for cyclists when you pause to read or compare clues.

Royal Exchange Building London: the opening puzzle energy

Your first stop is the Royal Exchange Building London. This is a strong starting choice because it sets the tone fast, with architecture that feels made for attention to detail. Instead of wandering around aimlessly, you move into the space with a specific mission, which makes the landmark feel more like part of the game than a backdrop.

At this stage, you’ll likely be doing the most “getting oriented” work. That’s where the app guidance helps you move smoothly from point to point. I like that the game is easy to follow once you’re up and running, so you’re not constantly second-guessing direction.

If you’re the type who likes a confident start, go into the first leg with your phone ready to use, audio or brightness set to your liking, and your team focused on the clue. A slow start can happen when everyone is still figuring out the flow, but once the rhythm clicks, the rest tends to move faster.

Leadenhall Market: solving clues among the old streets

Next up is Leadenhall Market. This stop gives you a different feel from the more formal vibe you get at the Royal Exchange. Markets often reward close observation, and that’s exactly what this kind of puzzle game asks you to do: look closely, then figure out what the clue is pointing at.

Leadenhall Market also works well for teams, because it creates natural moments to gather around your phone and talk through ideas. If you’re traveling with teenagers, older relatives, or mixed experience levels, this is the kind of stop where everyone can contribute, even if they’re not sure where to begin.

One practical note. If you do this on a weekday around lunch time, you may run into heavier foot traffic. I’d plan around that. If you want an easier walking and puzzle experience, earlier in the day or weekends can feel quieter in many central areas.

Also, markets and covered walkways can make it tempting to slow down. That’s not a problem for a game. Just remember that other people are also trying to move, so keep your group compact when you pause.

The Monument to the Great Fire of London: turning a landmark into answers

Your final stop is The Monument to the Great Fire of London. This one is especially satisfying for puzzle lovers because it takes a famous reference point and makes you engage with it as part of the story. Instead of treating the Monument as something you simply pass by, you get a chance to connect the environment to the clues you’ve been solving.

This is also where you can get a little more strategic. If your team has been stuck earlier, you may hit a moment where one person spots a visual detail, and suddenly the clue makes sense. That team energy is why games like this work so well in person. The puzzle is the trigger, but the problem-solving together is the payoff.

If you’re someone who hates dead ends, it helps to know that the game includes a way to view the answer if you’re really stuck. That keeps the experience from turning into frustration, especially for families or mixed-age groups. Use it sparingly if you like the challenge, but it’s there when you just want to keep the story moving.

How the clues, app guidance, and photo navigation work

Mission SUNSCREEN uses a web app on your phone to guide you through the experience. That means the game can adapt to where you are, rather than forcing you into a fixed order with no flexibility. It’s also why the stop-and-start pacing works so well.

You’ll be solving a trail of clues, riddles, and puzzles. The key practical point is that you’ll do a lot of reading and comparing clues in a short time. That’s why good team habits help: one person leads navigation, another reads the clues out loud, and everyone takes a turn proposing what the clue might be asking for.

One thing to consider based on how the navigation feels in busy central London. Some clue navigation uses photos, and that can mean more phone attention while walking. If you prefer calmer phone use, you may find it helps to scan the next clue while standing still, then move a few steps before checking again. It keeps you from walking while trying to interpret tiny details.

Built-in breaks, walking pace, and comfort tips

The walking portion is about 4,000 steps. That’s not a marathon, but it is a real chunk of walking for a puzzle game that also asks you to stop frequently. I’d plan your footwear like you’re doing a normal city stroll, not like you’re just popping into shops.

The game includes built-in breaks for food and drinks, which is a smart design choice. It helps you keep energy up, and it prevents the classic problem of puzzle tours where everyone gets hungry and the group mood shifts.

Because you’re stopping and starting, you’ll also feel the weather more. Bring layers you can manage easily, and if you’re traveling in warm weather, plan to keep water on hand. Mission SUNSCREEN is the name, so sun and heat are always a possibility.

Teams, head-to-head play, and the family-friendly feel

This game works in teams of 2 to 6. You can also split into multiple groups if you want a head-to-head style challenge. That’s a great option for groups where not everyone wants to move at the same mental speed. One team can sprint through, and the other can take a slower, more methodical approach.

I also like that the experience fits a wide age range. It’s the kind of activity where a 30-something and a teen can both enjoy contributing, even if one person is better at puzzles and the other is better at noticing details in the street.

On the family and mixed-age side, the ability to take pauses also helps. If a younger member needs a rest or an older member wants to move a bit slower, the game is built to accommodate that.

Price and value for a 3-hour City of London puzzle walk

The price is $17.73 per person for about 3 hours (roughly 3 to 4 hours in practice). For London, that’s not cheap in the abstract, but it can be good value if you like activities that keep you active and engaged the whole time.

Here’s why it can feel worth it. You’re not just paying for entry into a place. You’re paying for an organized walking game, guided by a phone app, with built-in breaks and a route that takes you through specific City of London landmarks. You also get a self-paced experience, which means you’re not stuck with a guide’s schedule or a set pace that might not suit your group.

If you’re the kind of person who loves puzzles, photos, riddles, and figuring things out in a team, the price makes more sense. If you want a classic sit-down tour with a lot of background storytelling, you might find you prefer something else. This one is more interactive than lecture-style.

Should you book Mission SUNSCREEN by Glitch Hunters?

Book it if you want London that feels like a game, not just sightseeing. I’d especially recommend it for groups who enjoy solving problems together and for anyone who likes noticing architecture and street details in a structured way. The combination of iconic City of London stops plus self-paced app guidance makes it a smart pick when you want a memorable afternoon without committing to a full-day tour.

Skip it or consider a different style if you dislike phone-based navigation or if you strongly prefer audio-led tours with minimal screen time. Also plan your day around comfort, because you will be looking at your phone a lot while walking, and you’ll need to stay aware of your surroundings.

If your goal is to see the City of London in a way that feels playful and slightly challenging, this is an excellent choice.

FAQ

How long is Mission SUNSCREEN by Glitch Hunters?

The experience runs about 3 hours, and the game is described as an immersive adventure lasting roughly 3 to 4 hours.

What is the price per person?

It costs $17.73 per person.

Where do you start and where does it end?

You start at Cannon Street Greater, Cannon St, London EC4N 6AP, UK, and the activity ends back at the same meeting point.

How many steps will I walk?

The experience involves walking on foot for approximately 4,000 steps.

Is it wheelchair accessible?

Yes, it is fully wheelchair accessible.

How is the experience guided?

It’s guided by a web app on your phone, which directs you through clues, riddles, and puzzles.

Can we play at our own pace?

Yes. You can do the game at your own pace and stop and start as you please.

How many people are in a team?

Teams are designed for 2 to 6 players. You can also split into multiple groups for a head-to-head challenge.

Is it private for my group only?

Yes. It’s listed as a private tour or activity, with only your group participating.

Is there free cancellation?

Yes. You can cancel for a full refund, as long as you cancel at least 24 hours in advance of the experience start time.