Bayside Park is a saltwater beach in San Diego County, California. Across 156 bacteria samples collected between 2021 and 2025 at nearby monitoring stations, it earns a Beach Safety Grade of F — Failing.
About 79% of samples at Bayside Park 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 frequently crossed here over the monitored period. Bacteria samples exceed the safe-swimming threshold a large share of the time — this beach flags advisories often.
Bayside Park is currently listed as inactive in the EPA beach-monitoring program, so it may no longer be routinely sampled. Its grade reflects the water-quality results collected while it was active — useful history, but confirm the beach's current status and any local advisory before you visit.