Final answer:
Coastlines contribute to tourism in Central American and Caribbean South American countries due to their beautiful beaches, warm tropical climate, and coastal waters.
Step-by-step explanation:
The geographic feature that contributes to tourism in Central American and Caribbean South American countries is Coastlines. The coastal regions of these countries, with their beautiful beaches, warm tropical climate, and coastal waters, attract tourists from all over the world. The Caribbean region, in particular, has experienced significant growth in its tourist industry in recent decades, becoming a major source of economic income for many countries in the area.