Here\u2019s what\u2019s happening in town today, April 26. What\u2019s not happening in town today? A ribbon-cutting to open the demonstration section of the Wilton Loop of the Norwalk River Valley Trail takes place at 9, with a celebration continuing until noon. It\u2019s on Route 7, across from Wolfpit Road. Wilton Library opens its Gigantic Book Sale today. The Rotary Club will be selling hot dogs and sodas at lunchtime. The Wilton Family Y\u2019s trout fishing derby is from 6:30 a.m. to 7 p.m. And, it\u2019s also Healthy Kids Day at the Y from noon to 3. The Democratic Town Committee breakfast starts at 9 at Trackside. A new show opens at browngrotta arts from 1 to 6 at 276 Ridgefield Road. For more things to do, check the Wilton Bulletin Board.