Explain types of waterways & mention …

There are mainly two types of waterways :
Inland waterways - Inland waterways comprise of rivers, lakes, canals, backwaters etc which are navigable. Major inland waterways in India are - Ganga Bhramaputra river system, rivers of Goa, backwaters of Kerala etc. Globally, lakes of North America, Suez Canal, Nile river etc are quite popular.
Sea Routes - Sea Routes are mainly used for transporting goods internationally. Sea Routes are also used by ships for tourism purposes. The major ports in India are Mumbai, Surat, Vishakapatnam etc. Globally, Singapore, Newyork etc are quite popular. Sea Routes maybe considered as one of the most primitive ways of travelling internationally.
Advantages of waterways
1. Suitable For Heavy Cargo: Water transport is the only suitable means to transport heavy and big sized goods and materials.

2. Foreign Trade: Water transport is the cheapest and suitable means for transporting goods, conducting trade among different countries, importing and exporting goods.

3. Natural Gift: Rivers, lakes, seas, etc. are free gifts provided by nature. So, no additional expense is needed to construct waterways like roads and railway construction.

4. Cheap : Water transport is the cheapest means. Its operational expense remains unchanged and relatively cheap. As it can carry and transport huge amount of goods at a time, per unit cost becomes low.