Explore the area around the Hamburger Außenalster with a self-guided smartphone tour and messenger-based game. Make your way around the Außenalster as you help Luke to find his friend Phil. As you solve tricky puzzles, hear to your audio guide's commentary on local history and facts.

Start your tour whenever you like and play at your own pace. Phil has disappeared. On his way home, Phil sent messages to his friends, but it's a total mess. Luke desperately needs your help to get through pictures, voicemails, and clues.

Your tour takes you all around the Außenalster, where something is always going on - walking, cycling, jogging, sailing, rowing, pedal boating, standup paddling, and so much more.

Learn how the Alster was created and discover million-dollar mansions, buildings, historic sites, and squares with beautiful views. Of course, there is always time for a beer in between, but don't forget to find Phil.