 And swimmers are being urged to avoid a popular spot to cool off in Acadia National Park. It's recommended they stay away from the Sand Beach Lagoon due to high bacteria levels that have been detected in the water. However, this warning doesn't apply to Sand Beach because officials say the water there poses no risk to the safety of swimmers. It's not known how long bacteria levels will remain elevated at Sand Beach Lagoon. For these stories and more, log on to ThePulseOfNH.com.