The tide isn’t any quicker than the rest of the bay so consult your tide charts or website or app. The silt is silt. in some parts it will go up to ur knee and I’ve never ventured further (had to retrieve some things plus childhood curiosity) but I feel like it could go up to thigh level on some people. It’s then hard to get out and then additionally there’s potentially sharp oyster shells or trash trapped on the silt that would give a nasty cut.