Middini Beach (WA-9) commences at Red Rock and trends west-southwest for 20 km to a southerly inflection in the shore. The first 10 km is dominated by an active dune system, which is 1 km wide in the west widening to 2 km at Red Rock, where it partly covers the rocks (Fig. 4.7). The active system has a narrow vegetated foredune, 100-200 m wide deflation basin, then the active transverse dunes. This beach receives slightly higher waves, which may contribute to the more active dunes. Some dune calcarenite outcrops at 172 km forming a small point, while red sandstone reef is located off the beach at 171 km. The rocks have been eroded and deposited as storm cobble-boulder ridges, which are now exposed in the deflation basin. The beach maintains a low gradient, with a continuous low tide bar, usually free of rips. The western half of the beach is more protected by shore parallel reefs lying 200-300 m offshore and tends to have stable vegetated foredune and older backing dunes extending up to 4 km inland. read more

Beach Length: 20km