Make an appointment with your female friends with whom you are currently travelling around the Czech Republic and come for a run! The 5km distance is just right, so you don't have to be trained to enjoy the race.
The organisers have banned men from the course, so you'll have plenty of space to yourself. You won't miss their presence though. They will be admiring you as spectators along the course. So bring them along and cheer you on!
Na Příkopě (start/finish), Prague