The summary provides high-level information about events happening in St. Louis from January 18-20 in 3 sentences: There are several winter festivals and events happening in St. Louis this weekend, including the Loop Ice Carnival celebrating winter in Delmar Loop with ice slides and carnival rides, soulard Mardi Gras featuring a snowman softball tournament with over 90 teams, and the Winter Jazz Fest at the Grandel featuring Grammy winner John Patitucci and other artists. People can also watch eagles at Eagle Days on the Old Chain of Rocks Bridge or a showcase performance at the Gateway Performance Workshop. In addition, the St. Louis Blues play the Ottawa Senators on Saturday evening at the Enterprise Center.