Lagoon is a water body that is formed near coastal areas. It is shallow and has a small link with sea or the ocean though it is also separated from the ocean water with reefs or a low sandbank. Water from these water bodies can be transported back to the oceans and water from oceans into these lagoons through inlets that cut through the barriers that are mostly sandbanks. Being shallow water bodies, there is a lot of effect on the salinity and the temperature of the water in lagoons with evaporation and precipitation. A logon is called leaky when there is unimpaired exchange of water from the ocean with the help of tidal channels that are wide. It can be a choked lagoon as it is connected with ocean with a long and narrow channel.