Shoals caused by tidal deltas on the sea-ward side of the tidal passes are indicated by the position of the breakers, which occur some distance offshore.

• 可以用出现在滨外宾外若干距离上的拍岸浪来判明那些在潮汐水道面向海盆一侧的潮汐三角洲形成的浅滩。