Shoal

In oceanography, geomorphology, and Earth Sciences, a shoal is a natural submerged ridge, bank, or bar that consists of, or is covered by, sand or other unconsolidated material, and rises from the bed of a body of water to near the surface. Often it refers to those submerged ridges, banks, or bars that rise near enough to the surface of a body of water as to constitute a danger to navigation. Shoals are also known as sandbanks, sandbars, or gravelbars. Two or more shoals that are either separated by shared troughs or interconnected by past and or present sedimentary and hydrographic processes are referred to as a shoal complex.

The term shoal is also used in a number of ways that can be either similar or quite different from how it is used in the geologic, geomorphic, and oceanographic literature. Sometimes, this terms refers to either (1) any relatively shallow place in a stream, lake, sea, or other body of water; (2) a rocky area on the sea floor within an area mapped for navigation purposes; (3) a growth of vegetation on the bottom of a deep lake that occurs at any depth; (4) and as a verb for the process of proceeding from a greater to a lesser depth of water.

Bar

A bar (also known as a saloon or a tavern or sometimes a pub or club, referring to the actual establishment, as in pub bar or club bar etc.) is a retail business establishment that serves alcoholic beverages, such as beer, wine, liquor, cocktails, and other beverages like mineral water and soft drinks and often sell snack foods, like crisps or peanuts, for consumption on premises. Some types of bars, such as pubs, may also serve food from a restaurant menu.

Bars provide stools or chairs that are placed at tables or counters for their patrons. Some bars have entertainment such as a live band, Bars that offer entertainment or live music are often referred to as music bars, live venues, or nightclubs. Types of bars range from inexpensive dive bars to elegant places of entertainment often accompanying restaurants for dining.

Many bars have a discount period, designated a "happy hour" to encourage off-peak-time patronage. Bars that fill to capacity sometimes implement a cover charge or a minimum drink purchase requirement during their peak hours. Bars may have bouncers to ensure patrons are of legal age, to eject drunk or fighting patrons, and to collect cover charges. Such bars often feature entertainment, which may be a live band, vocalist, comedian, or disc jockey playing recorded music.