Well, it's officially summer in Austin. The calendar begs to differ, I know, but I have my own criteria. One, I've already been attacked by chiggers as I lounged in my front yard, watching a lizard sun himself on the enormous arms of the agave I've dubbed Big Momma. Also, I just enjoyed the season's first michelada, a frosty mix of beer, lime juice, Worcester sauce, and Tabasco, a thirst-quenching libation I discovered several years ago at El Chile on Manor Road, Austin's burgeoning eastside restaurant row. And finally, last night, I took the season's first dip in Austin's Barton Springs pool as the descending sun sent glittery shimmers across the water's surface. In a quintessentially weird and wonderful moment, I witnessed both a group baptism and a topless woman bounding down the hill as people tried not to stare. I adore Barton Springs in winter (when I bring a big robe and a thermos of hot tea), but I especially adore it in summer, when I could spend all day swimming and lolling about on a broad blanket on the hillside, partially shaded by pecan trees, entertained by chattering squirrels, and watching the comings and goings of a broad sample of humanity. There are hand-holding high-schoolers in skimpy bikinis and floppy summer hats; sinewy, gray-haired men with broad shoulders and tiny Speedos; children with doughy knees in ruffled suits and heart-shaped sunglasses; Mystic-tanned college kids dangling from plastic floats on the deep end, squeezing the last bit of sunshine from their days. And on that note, I'm going to the pool.