Great Chesapeake Bay 4.4 Mile Swim & 1 Mile Bay Challenge

This event benefits the March of Dimes, the Chesapeake Bay Trust, the US Coast guard, and other local charities. The 2026 Great Chesapeake Bay Swim is doing a Sunrise Swim in 2026! Race Day is June 14th, 2026, with a 6:30am start time for the 4.4 Mile Swim. We are currently planning on having the 1 Mile Swim begin at 7:30am.The 1 Mile Start time is subject to final approval. Two emails have gone out. One to the 2025 4.4 Mile Swimmers with information about the Early Bird program (complete the 4.4 mile swim with us and receive a special offer for the following year). The other email has gone out to our 2024 4.4 Mile Swimmers who were unable to join us in 2025. If you fall in to either of these categories and didn't receive an email from us on Sept 30th, 2025, please reach out ASAP at info@bayswim.com Don't forget, our newly designed site (www.BaySwim.com) and our email of info@bayswim.com are your sources for all of your up to date information!!! CURRENT WATER TEMPERATURE READINGS https://www.ndbc.noaa.gov/station_page.php?station=44063 Don't forget to follow us on Facebook at https://www.facebook.com/greatchesapeakebayswim !!