Is there a summer day that’s not a good time for a crab feast? Local nonprofit DC Sail, which organizes sailing lessons for underserved youth, is hosting Blue Crabs N Bluegrass at Phillips on the Southwest Waterfront to raise money for scholarships. The $80 crab feast, which runs from 5 to 8, includes all-you-can-eat crabs, sides, beer and wine. Meanwhile, on the deck, Human Country Jukebox will be playing the songs of Waylon Jennings, Hank Williams Jr., the Oak Ridge Boys, Garth Brooks and other country hitmakers from 6 to 10. Admission to the show is $10, and there will be a cash bar. Get more information and advance tickets from www.dcsail.org.