Wheeled movement
Counted in 30 minutes on beachfront in summer.

Mode Number Information
Jboard 9 Both feet on board. Propelled forward by body wriggling.
Skateboard 21 One foot on board until required speed achieved, then 2 feet on board.
Stroller 3 Baby pushed in 3 wheeled pram by a runner.
Pram 8 Babies pushed in prams.
Bicycle 27 Well known form of transport with two wheels.
Tandem bicycle 1 Two persons on a single bicycle with two wheels.
Tricycle 1 Adult on a big tricycle.