You have to admire the capacity of mankind to invent strange events across the globe and they don't come much stranger than the Beach Bare Buns Run (try saying that quickly, or when drunk) which takes place in Vancouver every year.
Competitors run a 5km race on a beach, totally naked, apart from shoes, and pay $25 dollars to enter if they're an adult or $20 if a senior. Personally I'd make the seniors pay more Proceeds from the event go towards preservation of the beach and people come from all over the world to participate there is even an award for the buns that have travelled the furthest to enter the race. Wy don't hey just wear swimwear if its cold.
Next time you see a group of people out jogging just think what it could look like!