http://www2.timesreview.com/SUN/ Serving the North Shore of Eastern Brookhaven Town en-us http://www2.timesreview.com/SUN/stories/S071808_Cal-Brief_JG5 The 10th annual Riverhead Blues Festival will be held Saturday, July 19, from 11 a.m. to 11 p.m. and Sunday, July 20, from 11 a.m. to 9 p.m. at three venues -- the Vail-Leavitt Music Hall, Club 91 and the outdoor Main Stage at the riverfront in downtown Riverhead. Presented by Vail-Leavitt Music Hall, the event features local acts, newcomers and favorites from surrounding areas. This year's headliners include "son of the blues" Bernard Allison and singer, songwriter and guitar virtuoso Ana Popovic. Other featured artists are T-Bone and Franny Mae, The Mojos, Toby Walker, Frank Latorre & The King Bees, Gail Storm, Sam "Bluzman" Taylor and more. http://www2.timesreview.com/SUN/stories/S071808_Calendar_JG7 Friday 18 9 a.m.--Trails center special, 4 miles easy-to-moderate hiking offered by Long Island Greenbelt Trail Conference; from Trails Information Center (quarter-mile north of LIE Exit 70, Manorville), to Wading River-Manor Road and back. Bring water; rain cancels. 209-0030.