activities adrenalin adrenaline adventure blue extreme mountain nature parachute paraglide paraglider paragliding parapente sky sport vôo amusement entertainment excitement ferris wheel fun joy joyride park ride theme park thrill view action boat cold danger energy flow group holiday outdoors people persevere power raft rafting rapid recreation risk river rocks beginn bike biker challenge contest course crew dangerous event flag getting started go line man moto motorbike motorcycle motorracing oschersleben pit crew race race line racetrack racing red red flag signal sports sportsmen start starter starter's flag starters flag starting starting line waving