Follow the trail of Amsterdam’s wartime resistance in a two-hour walking puzzle that unravels the true story of hidden industrial diamonds. Expect historic streets, civic memorials, and hands-on clues as you explore the city differently.
More ways to explore the area's outdoor wonders
A brisk morning on Amsterdam’s narrow streets puts you immediately in motion: brick facades lean toward the canal, church spires puncture a pale sky, and cobblestones click underfoot as you open the game bag. The city’s canals seem to dare you to follow their reflections, and the auditory hum of bicycles becomes a metronome for puzzle-solving.
Difficulty
easy
Duration
2 hours
Fitness Level
Suitable for most fitness levels; requires only basic walking stamina and mobility for flat urban terrain.
Wildlife
History
The tour anchors on a wartime episode: as Nazi forces occupied the Netherlands in 1940, local resistance organized to conceal Amsterdam’s industrial diamond stockpile, a story honored during Liberation Day commemorations.
Conservation
Travelers are encouraged to respect memorial sites and local neighborhoods, support small businesses along the route, and avoid littering to help preserve delicate historic surfaces and canal ecosystems.
Reserve your spot on the Operation 45: An Adventure in Diamonds today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring a charged phone
The game uses maps and digital photos; a full battery keeps navigation and note-taking smooth.
Wear comfortable, grippy shoes
Cobblestones and canal-side paths can be uneven—flat soles help steady footing.
Dress in layers
Amsterdam weather changes quickly; a light waterproof layer is useful in spring and fall.
Plan your start time
Begin early in summer to avoid peak crowds around major sights and make the most of the two-hour itinerary.
Comfortable walking shoes
Support and traction for cobblestones and varied pavement.
Portable phone charger
Keeps your device powered for maps, photos, and game clues.
Light waterproof jacket
Protects against sudden showers common in spring and shoulder seasons.
spring
Reusable water bottle
Staying hydrated during a two-hour walk is especially important in warm weather.
summer