Durango Flea Market, 7 a.m.-2 p.m., La Plata County Fairgrounds, 2500 Main Ave.

Knights of Columbus/St. Columba Relay For Life Team will host breakfast, 9-11:30 a.m., Sacred Heart Catholic Church, 254 East Fifth Ave.

American Legion will host Sunday brunch, 9 a.m.-noon, 878 East Second Ave.

Retirement party for Durango School District 9-R teacher and El Diablo newspaper adviser Barbara McLachlan, 1-4 p.m., Durango Discovery Museum, 1333 Camino del Rio.

Arts and Entertainment

Irish music jam session, 12:30 p.m., Irish Embassy Pub, 900 Main Ave., 403-1200, www.theirishembassypub.com.

The Black Velvet duo, with Nina Sasaki and Larry Carver, 5 p.m., Dalton Ranch Golf Club, 589 County Road 252.

Quadripoint opening night reception, featuring Phillip Noll Jr. and Monica Noll, 5-7 p.m., Substratum Gallery, 1021½ Main Ave., (970) 394-0047.

Jazz church (experienced musician drop-in session), 6 p.m., Derailed Pour House, 725 Main Ave., 247-5440, www.derailedpourhouse.com.

Karaoke, 8 p.m., 8th Avenue Tavern, 509 East Eighth Ave., 259-8801.

Latin music night, 8 p.m., Moe’s, 937 Main Ave., 259-9018.