A group of people are riding down a roller coaster that appears to be called the 'Cyclone.'
A group from the local 4-H club enjoy a day at the local amusement part as part of their year-end celebration.
Not all groups of people who may ride a roller coaster are local 4-H club members, and the not all roller coasters are located in an amusement part.  Additionally, it can not be implied that they were involved in a year-end celebration.
A group of people riding a roller coaster might not be members of a 4-H club at their year-end celebration.
A group of people can ride a roller coaster in locations other than their local amusement park, and riding it does not imply they are enjoying the day. A group of people does not infer that they are a local 4-H club or they are having a year-end celebration.