A expression utilized to illustrate how breaks throughout a region will acquire an inbound swell relative to whether they face the inward swell or not. As an illustration, if you have three breaks facing various directions: break 1 faces southwest, break 2 faces south, and break 3 faces northwest. Now if we've got an incoming S swell: break 1 will be the best exposed, 2 will be moderately exposed and would definitely be regarded as average. It would get sufficient energy to break but not equally as much as the first beach break. Break 3 will be facing away from the swell and wouldn't likely break at all.