Several people on a Puerto Rico student service trip, wearing helmets and gloves, are shoveling gravel into buckets outdoors on a sunny day, next to a fence and bags of materials.

Several people on a Puerto Rico student service trip, wearing helmets and gloves, are shoveling gravel into buckets outdoors on a sunny day, next to a fence and bags of materials.

Several people on a Puerto Rico student service trip, wearing helmets and gloves, are shoveling gravel into buckets outdoors on a sunny day, next to a fence and bags of materials.

Several people on a Puerto Rico student service trip, wearing helmets and gloves, are shoveling gravel into buckets outdoors on a sunny day, next to a fence and bags of materials.