Examples of favourable conditions include

• a coast that has constructive waves so that more materials are deposited by the swash than that washed away by backwash
• a coast that is sheltered from strong prevailing winds so that there is more deposition than erosion
• waves carrying more load than they can transport, thus the materials are deposited.
• shallow offshore water
• light wind
• a short fetch

Beaches

One of the features formed through deposition is a beach.

A beach is a zone on the shore where deposited materials are accumulated.

These materials are deposited in the zone between the low water level and the high water level. And, these materials are very different in size.

Formation of beaches