Adds massive cargo ships to the game, that function similarly to trains. Also adds deep sea oil, oil platforms, tanker ships, train bridges and other water based content.
I personaly use item stacking mod to rapid loading and unloading with mini loader. The capacity is same but the stack size is much smaller. For example 50 iron ore stacked just 10 item. With fully upgraded stack inserter just 1 move since it can grab 13 item. Without stacking thats 4 move. Pretty fast without loaders i think.