Blythe Island Regional Park Sandbar is a saltwater beach in Glynn County, Georgia. Across 43 bacteria samples collected between 2021 and 2025 at nearby monitoring stations, it earns a Beach Safety Grade of B — Good.
About 5% of samples at Blythe Island Regional Park Sandbar exceeded the EPA Beach Action Value of 104 CFU/100 mL for Enterococcus — the threshold at which water managers typically post a swimming advisory. In practice that means the safe-swimming limit was rarely crossed here over the monitored period. Bacteria samples rarely exceed the safe-swimming threshold.
Blythe Island Regional Park Sandbar was not under a swimming advisory in the most recent EPA snapshot. Conditions can change quickly after heavy rain or high runoff, so it's still worth checking the current advisory the day you go.