203 S. St. Mary's St.
San Antonio, TX 78205
From the company website:
Sing in the holidays by Caroling with friends and family from a boat on the River Walk. Celebrate the timeless tradition of spreading joy with a San Antonio twist.
The public is encouraged to enjoy the caroling for free from the banks of the river or while seated on a restaurant patio. Experience the sounds of the season as caroling boats float along the river in the downtown area. See the caroling route map posted in the photo gallery. Boats randomly stop at restaurants.