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Biggest crab of this type I've ever seen. Absolute unit! The claws are so chunky.

Male crab. Spotted on the move in ankle deep clear water. Early morning. Despite the powerful claws it preferred to play possum rather than nip me.

Detrital line of dead seagrass, mostly this genus (with some Amphibolis and algae, as usual), along the sandy long-shore channel that now exists along most of the North Beach , especially near the jetty, van park, SLSC, kiosk and general foreshore precinct.

Important Note; While the subject drift dead tape-weed in image is usually a normal seasonal occurrence, the virtual absence of living seagrasses right on the 'blue line' is not.
This absence is perennial now (as I can vouch from frequent snorkels and a fair few shore dives over many years including all 4 seasons). Living seagrass beds along the edges of the * 'Blue Line' have retreated on average many metres seaward. (*Re 'Blue Line'; inshore limit of vegetated bottom where hard substrate meets littoral zone sand; the colloquial name originally referred to the line where perennial sea-grass meadows met clean white inshore sand, with minimal change in depth on either side of the line. While the term remains in popular use, at this location it is actually a brown-green-grey line, rendered thus by the near- absence of flowering marine plants ,which have been replaced by varying mixtures of bare grey undercut rocky shelf, canopy brown fucoid algae (including Caulocystis Cystophora and Sargassum) and turf algae, various types of the latter usually being highly seasonal in nature.
A long-shore scarp now exists, where wave action has scoured a gutter or trench which can vary seasonally from ~0.5 to @ least 1 metre depth but is a permanent anthropogenic feature.
One which will further accelerate sand loss from Normanville's beaches.