A skateboarder is performing a grab trick while hovering above a ramp, which is located within a city.
A skateboarder is at a skatepark with his friends showing off his moves.
The skateboarder could have been by a boat ramp by himself instead of at a skatepark with his friends.
Just because the skateboarder is in the city with his friends does not mean he is at a skatepark.
Just because a skateboarder is performing a grab trick while hovering above a ramp, which is located within a city does not mean they are at a skatepark with his friends.