Local biologist, artist & environmentalist Briony Penn will lead youth, aged 6-13, in the art of observation and documentation. They will fill a sketchbook with their own drawings of the plants, animals and landscape that are around us. Final youth works will be exhibited at Against the Current: Orca + Salmon at Mahon Hall, Feb. 14-23. Runs Saturdays at Mahon Hall, 10 a.m. to 1 p.m. through Feb. 15.