Prepare for a trip on a river with a canoe or standup paddleboard or something similar. Choose easy, medium or hard difficulty for the length of the tour.

Easy: Paddle at least a distance of 2,5 km. [15 NIP-Points]

Medium: Paddle at least a distance of 5 km. [30 NIP-Points]

Hard: Paddle at least a distance of 10 km or more. [45 NIP-Points]

Go to a river of your choice during the day at which you think to complete a tour of the chosen length. Make sure the river is used by other people doing similar activities or passes along streets, hiking trails, bridges or other urban parts. Start your tour and undress one piece of clothing everytime you see another person (Woman should undress bra and panties at once). Pass one more person naked before stopping at the next riverside to get dressed again. Continue this process until you finish the distance of your choice.

Extreme Variation: Undress until naked before you start the tour and stay like this the entire way. Do a skinny dip at the next riverside after passing another person. [x3 NIP-Points]