Waterways include rivers, canals, and other bodies of water used for transportation. There are two main types of waterways transport: inland water transport and shipping (sea/ocean transport). Inland water transport involves transportation over rivers, lakes, and canals within a country where crafts of 50+ tonnes can navigate. It is an environmentally friendly mode but has low speeds. Shipping involves coastal and overseas transportation by sea and has various types including container ships, tankers, and roll-on-roll-off vessels. Water transportation allows for large cargoes but is slower than other modes and subject to weather delays.