Apache Camel can be used with HashiCorp Consul to address challenges in tracking services and communication in multi-cloud or hybrid cloud environments. Consul provides service discovery, health checks, and possibly a service mesh if needed, making it a simpler solution than Kubernetes for orchestrating containers and service registration. Using the Service Call Enterprise Integration Pattern (EIP) with Consul, developers can create load-balancing flows that let clients call available services, and if not available, communicate with an external service registry to figure out what is available. A Consul service registry maintains a list of healthy, available services in the form of a catalog that can be queried by external components. The example demonstrates how to use Consul with Camel using Spring Boot, including configuring service filters and discovery services, and testing the setup with curl commands.