The Towne family of Onemo—Carson, Sawyer, Jan and Shawn, from left—prepare to launch their lighted kayaks (and selves) from Put-In Creek Park in Mathews on Saturday. They were embarking on their annual trip down and back up the creek, singing carols with crowds waiting on shore. An exceptionally low tide forced the family to float and push for about 25 minutes until reaching water deep enough to paddle, “but we caroled to five or six groups, and made it all worth it,” said Jan Towne....