Owing to snow, there was no school Wednesday. The groundhog remains safely below ground. But this all will change soon enough, and when it does, there will be no better way to spend an afternoon than floating in the backyard pool or, perhaps, even paddling a few laps. No worries if you're prone to sink like a stone, as the Springfield Park District is offering weekly Saturday swimming lessons starting this week and ending April 28. There are no guarantees that you'll be able to swim after five 35-minute lessons, but you'll have a better chance. Lessons will be held at Eisenhower Pool on East Cornell Street, with prices ranging from $44 to $116, depending on whether you want to learn amongst a bunch of toddlers or would prefer private lessons. For more information, call 525-8847.