But a plunge into the icy cold waters off Plum Island next month helps raise critical funds for the Merrimack River Watershed Council. Polar Plunge 2025 is set for Sunday, Feb. 2 at 10:30 a.m ...

A college student remains missing after disappearing ... told KTVU that they were all taking a “polar plunge,” meaning swimming in cold water during the winter. A large wave swept Alsaudi ...