Coastal City, from the 3E module Atlas Unleashed, is a generic coastal city with a bay, a hospital (possibly more than one), a swank hotel, a fine art museum, a power company, an over-crowded freeway system, and a factory-lined channel (which may be a river). An air force base and NASA telemetry station are nearby.
We can postulate that it is a major city with a university, a school system, shopping and residential districts, parks, a zoo, and government buildings. A lighthouse may be on an island in the bay and a general aviation airport is possible.