The Greater McLean Chamber of Commerce is hosting a luncheon featuring the Potomac Conservancy, a land trust dedicated to preserving the scenic and natural Potomac River, from 11:30 – 1 p.m. Wednesday, May 25. Guest speakers include Hedrick Belin, president of the Conservancy and Harry Rauner, vice chair of the Conservancy Board and president and CEO of The Business Bank. The presentation is part of the Chamber’s The Business Bank Luncheon Series. It will take place at The Tower Club, 8000 Towers Crescent Drive, #1700, Vienna. Tickets are $50 for members, $60 for nonmembers. For more information or to reserve a seat, visit mcleanchamber.org.