Yes guys u need a guide to go n walk2 along e beach during super low tide.
Ur fren was lucky but if u wanna try ur luck by all means. Cuz e rangers fm NP will actually chase u away. They have small tour groups so they can recognized almost everyone in their grp.
So my suggestion is go for e NP tour. Meanwhile u can walk2 along e broadwalk, not too bad at low tide but do bring a long lens else u cant take much foto.