Not this particular beach, but I've lived near one for most of my life. I used to have pages of tidal charts.

[He scoops up some sand and runs it through his fingers as he walks, humming with contentment]

My waverunner's waiting at the dock, just past the beachgrass. Come on!

[He picks up the pace a little, grinning wickedly. Any more excitement, and he'd be grabbing her hand and running along.]