Weathering Process. The weathering process occurs when rocks are exposed to the hydrosphere (water) and atmosphere (air).  These agents can change the physical and chemical characteristics of rocks.  As rocks are broken down (weathered), they can be classified as different types of sediments, which are: o boulders, cobbles, pebbles, sand, silt, clay, and colloids. See page 6 of the Earth Science Reference Tables explains the sizes of each of these sediments.
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. Arial view of a lagoon.
Luminous Lagoon. The Luminous Lagoon is home to one of the most spectacular natural phenomena in the world. The lagoon is home to billions of microscopic organisms which glow an iridescent blue / green colour when the water is disturbed. Boats run continuously from the Glistening Waters restaurant after dark. Just turn up and wait for the next boat to arrive to take you on the half hour tour.