| 摘要 |
One aspect of the invention provides a method of improving surf conditions above a seabed. The seabed is at least partly formed of unrestrained sediment. The method includes moving some of the sediment to form a formation SB of unrestrained sediment. Another aspect of the invention provides a grooming device (10) for improving surf conditions above a seabed. The device is movable in a direction of travel along the seabed and includes an outlet (16b) and an arrangement (14c). The outlet is for directing, in a direction transverse to the direction of travel, a stream of water to move some of the sediment. The arrangement is for engaging the seabed to resist force resultant from the directing the stream of water. |
