The crawler must be capable of operating "in different sediment and seabed types (e.g., rocky, flat sand, silt, etc.) and must be stable on the seabed in dynamic sea states and currents." ...

The crawler must be capable of operating "in different sediment and seabed types (e.g., rocky, flat sand, silt, etc.) and must be stable on the seabed in dynamic sea states and currents." Though ...